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[handlebars] group params in opening block statements #14067

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jamescdavis
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@jamescdavis jamescdavis commented Dec 27, 2022

Description

This is a follow-up to #13930 to establish wrapping consistency between opening block statements and else blocks by grouping params in opening blocks. This causes params to break to a new line together and not be split across lines unless the length of params exceeds the print width. This also updates the else block wrapping to behave exactly the same as opening blocks (after #13930 it attempts to keep params on same line as the "else block" keywords, even when block params cause wrapping, see else block in the Prettier main example below).

--print-width 80
{{! Input }}
{{#block param param param param param param param param param param as |blockParam|}}
  Hello
{{else block param param param param param param param param param param as |blockParam|}}
  There
{{/block}}

{{! Prettier main (includes unreleased #13930) }}
{{#block
  param
  param
  param
  param
  param
  param
  param
  param
  param
  param
  as |blockParam|
}}
  Hello
{{else block param param param param param param param param param param
  as |blockParam|
}}
  There
{{/block}}

{{! This PR }}
{{#block
  param param param param param param param param param param
  as |blockParam|
}}
  Hello
{{else block
  param param param param param param param param param param
  as |blockParam|
}}
  There
{{/block}}

Checklist

  • I’ve added tests to confirm my change works.
  • (If changing the API or CLI) I’ve documented the changes I’ve made (in the docs/ directory).
  • (If the change is user-facing) I’ve added my changes to changelog_unreleased/*/XXXX.md file following changelog_unreleased/TEMPLATE.md.
  • I’ve read the contributing guidelines.

Try the playground for this PR

--parser glimmer

@jamescdavis jamescdavis force-pushed the hbs_group_params_and_block_params_separately branch from 7e1d6c3 to 9112a12 Compare December 27, 2022 19:57
@jamescdavis jamescdavis changed the title [handlebars] group params and block params separately in block statements [handlebars] group params in block statements Dec 27, 2022
@jamescdavis jamescdavis force-pushed the hbs_group_params_and_block_params_separately branch from 9112a12 to f048ddc Compare December 27, 2022 20:11
@jamescdavis jamescdavis changed the title [handlebars] group params in block statements [handlebars] group params in opening block statements Dec 27, 2022
@jamescdavis jamescdavis marked this pull request as ready for review December 27, 2022 21:28
@jamescdavis jamescdavis force-pushed the hbs_group_params_and_block_params_separately branch from a91facb to e88b6c0 Compare December 27, 2022 21:33
@fisker fisker self-assigned this Dec 30, 2022
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fisker commented Dec 30, 2022

@jamescdavis I don't use handlebars, but is this a bug?

Prettier 2.8.1
Playground link

--parser glimmer

Input:

{{#block a}}
  1
{{else if b}}
  2
{{else}}
  3
{{/block}}

Output:

{{#block a}}
  1
{{else}}{{#if b}}
    2
  {{else}}
    3
  {{/if}}{{/block}}

I didn't mean else if is splited, I mean shouldn't {{/block}} align with the opening?

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fisker commented Dec 30, 2022

@jamescdavis I made some changes, please take a look.

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@fisker, your changes look good. Thanks for simplifying the logic!

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jamescdavis commented Dec 30, 2022

As far as the closing block alignment, it's due to the --html-whitespace-sensitivity setting in combination with prettier rewriting the else if.

When

{{else if b}}

is rewritten to

{{else}}{{#if b}}

and

{{/block}}

is rewritten to

  {{/if}}{{/block}}

and --html-whitespace-sensitivity is css or strict, it does not add whitespace between the statements.

See this playground link with --html-whitespace-sensitivity ignore.

You also see that explicitly writing this with newlines works fine, even with --html-whitespace-sensitivity strict: playground link

In any case, this would only be an issue when the {{else if is rewritten, which would only happen when the keyword that follows else doesn't match the opening block keyword. And TBH I'm not even sure that construct makes sense. When I did #13507, I made it only preserve the {{else foo when it matches the opening block (e.g. {{#foo) since it doesn't really make sense when they don't match.

If you wanted something like:

{{#block a}}
  1
{{else}}
  {{#if b}}
    2
  {{/if}}
{{/block}}

You'd explicitly write it that way.

And

{{#block a}}
  1
{{else}}
  {{#if b}}
    2
  {{/if}}
{{else}}
  3
{{/block}}

doesn't even make sense since there are two {{else}} blocks.

Maybe it should not try to match the opening block keyword and never split {{else anything regardless of the opening block? Prettier probably shouldn't change how the code will be interpreted by the compiler and so probably should just leave

{{#block a}}
  1
{{else if b}}
  2
{{else}}
  3
{{/block}}

as-is.

@jamescdavis
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jamescdavis commented Dec 30, 2022

@fisker I did notice one issue after your changes: when the if (or other block keyword) in {{else if goes beyond the print width causing the if to wrap to the next line, the if is not indented properly.

--print-width 8

Input:

{{#if a}}
  1
{{else if b}}
  2
{{/if}}

Output:

{{#if
  a
}}
  1
{{else
if
  b
}}
  2
{{/if}}

Expected:

{{#if
  a
}}
  1
{{else
  if
  b
}}
  2
{{/if}}

I've added a failing test and a fix for this.

But also, maybe it shouldn't wrap here? Maybe else if should always stay on the same line, even when it exceeds the print width? Maybe I was overzealous with group? 😆 If I made that change then else if would be more consistent with if.

It makes more of a difference with longer block keywords. Which do you think is better? (assuming --print-width 80)

Input:

{{#abcdefghijklmnopqrstuvwxyz-abcdefghijklmnopqrstuvwxyz-abcdefghijklmnopqrst param param param as |foo|}}
  1
{{else abcdefghijklmnopqrstuvwxyz-abcdefghijklmnopqrstuvwxyz-abcdefghijklmnopqrst param param param as |bar|}}
  2
{{/abcdefghijklmnopqrstuvwxyz-abcdefghijklmnopqrstuvwxyz-abcdefghijklmnopqrst}}

Ouput with else "if" grouped:

{{#abcdefghijklmnopqrstuvwxyz-abcdefghijklmnopqrstuvwxyz-abcdefghijklmnopqrst
  param param param
  as |foo|
}}
  1
{{else
  abcdefghijklmnopqrstuvwxyz-abcdefghijklmnopqrstuvwxyz-abcdefghijklmnopqrst
  param param param
  as |bar|
}}
  2
{{/abcdefghijklmnopqrstuvwxyz-abcdefghijklmnopqrstuvwxyz-abcdefghijklmnopqrst}}

or

Output with else "if" not grouped:

{{#abcdefghijklmnopqrstuvwxyz-abcdefghijklmnopqrstuvwxyz-abcdefghijklmnopqrst
  param param param
  as |foo|
}}
  1
{{else abcdefghijklmnopqrstuvwxyz-abcdefghijklmnopqrstuvwxyz-abcdefghijklmnopqrst
  param param param
  as |bar|
}}
  2
{{/abcdefghijklmnopqrstuvwxyz-abcdefghijklmnopqrstuvwxyz-abcdefghijklmnopqrst}}

Playground link

@jamescdavis
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I actually decided to make the change to not group else if so that it never wraps the if (or other block keyword) to a new line. This feels better and is actually what happens now (param wrapping is mess on stable, but should be in good shape after this PR). LMK, if you don't agree.

@@ -570,6 +624,86 @@ printWidth: 80
Another thing
{{~/if~}}

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You can put this test in a separate dir with small printWidth, instead of deep.nest.

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fisker commented Dec 30, 2022

Prettier probably shouldn't change how the code will be interpreted by the compiler and so probably should just leave

Agree, but this problem can be addressed in another PR.

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fisker commented Dec 30, 2022

I did notice one issue after your changes: when the if (or other block keyword) in {{else if goes beyond the print width causing the if to wrap to the next line, the if is not indented properly.

I removed indent() on it since indent should alway start with line, if you want indent(["else", line, "something else"]), you should write ["else", indent([line, "something else"])], but I can be wrong, to be honest, I don't really understand how indent works.

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fisker commented Dec 30, 2022

Which do you think is better?

I nerver use handlebars, I can't tell.

@dcyriller Do you have time to review? We plan to make a release, and I was hoping this to be included.

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Sorry I have been afk for a few weeks.

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@fisker I moved the test as you suggested. With the approval from @dcyriller, this should be GTG?

@fisker fisker merged commit 37fb53a into prettier:main Jan 28, 2023
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fisker commented Jan 28, 2023

@jamescdavis Thanks for your work.
@dcyriller Thanks for your time too.

@jamescdavis jamescdavis deleted the hbs_group_params_and_block_params_separately branch January 28, 2023 03:07
crapStone pushed a commit to Calciumdibromid/CaBr2 that referenced this pull request Feb 10, 2023
This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [prettier](https://prettier.io) ([source](https://github.com/prettier/prettier)) | devDependencies | patch | [`2.8.3` -> `2.8.4`](https://renovatebot.com/diffs/npm/prettier/2.8.3/2.8.4) |

---

### Release Notes

<details>
<summary>prettier/prettier</summary>

### [`v2.8.4`](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#&#8203;284)

[Compare Source](prettier/prettier@2.8.3...2.8.4)

[diff](prettier/prettier@2.8.3...2.8.4)

##### Fix leading comments in mapped types with `readonly` ([#&#8203;13427](prettier/prettier#13427) by [@&#8203;thorn0](https://github.com/thorn0), [@&#8203;sosukesuzuki](https://github.com/sosukesuzuki))

<!-- prettier-ignore -->

```tsx
// Input
type Type = {
  // comment
  readonly [key in Foo];
};

// Prettier 2.8.3
type Type = {
  readonly // comment
  [key in Foo];
};

// Prettier 2.8.4
type Type = {
  // comment
  readonly [key in Foo];
};
```

##### Group params in opening block statements ([#&#8203;14067](prettier/prettier#14067) by [@&#8203;jamescdavis](https://github.com/jamescdavis))

This is a follow-up to [#&#8203;13930](prettier/prettier#13930) to establish wrapping consistency between opening block statements and else blocks by
grouping params in opening blocks. This causes params to break to a new line together and not be split across lines
unless the length of params exceeds the print width. This also updates the else block wrapping to behave exactly the
same as opening blocks.

<!-- prettier-ignore -->

```hbs
{{! Input }}
{{#block param param param param param param param param param param as |blockParam|}}
  Hello
{{else block param param param param param param param param param param as |blockParam|}}
  There
{{/block}}

{{! Prettier 2.8.3 }}
{{#block
  param
  param
  param
  param
  param
  param
  param
  param
  param
  param
  as |blockParam|
}}
  Hello
{{else block param
param
param
param
param
param
param
param
param
param}}
  There
{{/block}}

{{! Prettier 2.8.4 }}
{{#block
  param param param param param param param param param param
  as |blockParam|
}}
  Hello
{{else block
  param param param param param param param param param param
  as |blockParam|
}}
  There
{{/block}}
```

##### Ignore files in `.sl/` ([#&#8203;14206](prettier/prettier#14206) by [@&#8203;bolinfest](https://github.com/bolinfest))

In [Sapling SCM](https://sapling-scm.com/), `.sl/` is the folder where it stores its state, analogous to `.git/` in Git. It should be ignored in Prettier like the other SCM folders.

##### Recognize `@satisfies` in Closure-style type casts ([#&#8203;14262](prettier/prettier#14262) by [@&#8203;fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
const a = /** @&#8203;satisfies {Record<string, string>} */ ({hello: 1337});
const b = /** @&#8203;type {Record<string, string>} */ ({hello: 1337});

// Prettier 2.8.3
const a = /** @&#8203;satisfies {Record<string, string>} */ { hello: 1337 };
const b = /** @&#8203;type {Record<string, string>} */ ({ hello: 1337 });

// Prettier 2.8.4
const a = /** @&#8203;satisfies {Record<string, string>} */ ({hello: 1337});
const b = /** @&#8203;type {Record<string, string>} */ ({hello: 1337});
```

##### Fix parens in inferred function return types with `extends` ([#&#8203;14279](prettier/prettier#14279) by [@&#8203;fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```ts
// Input
type Foo<T> = T extends ((a) => a is infer R extends string) ? R : never;

// Prettier 2.8.3 (First format)
type Foo<T> = T extends (a) => a is infer R extends string ? R : never;

// Prettier 2.8.3 (Second format)
SyntaxError: '?' expected.

// Prettier 2.8.4
type Foo<T> = T extends ((a) => a is infer R extends string) ? R : never;
```

</details>

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update again.

---

 - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box

---

This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).
<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNC4xMjUuMSIsInVwZGF0ZWRJblZlciI6IjM0LjEyOC4zIn0=-->

Co-authored-by: cabr2-bot <[email protected]>
Reviewed-on: https://codeberg.org/Calciumdibromid/CaBr2/pulls/1775
Reviewed-by: Epsilon_02 <[email protected]>
Co-authored-by: Calciumdibromid Bot <[email protected]>
Co-committed-by: Calciumdibromid Bot <[email protected]>
medikoo pushed a commit to medikoo/prettier-elastic that referenced this pull request Jan 4, 2024
renovate bot added a commit to andrei-picus-tink/auto-renovate that referenced this pull request Aug 15, 2024
| datasource | package  | from  | to    |
| ---------- | -------- | ----- | ----- |
| npm        | prettier | 2.7.0 | 2.8.8 |


##### [\`v2.8.8\`](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#288)

This version is a republished version of v2.8.7.
A bad version was accidentally published and [it can't be unpublished](npm/cli#1686), apologies for the churn.
##### [\`v2.8.7\`](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#287)

[diff](prettier/prettier@2.8.6...2.8.7)

##### Allow multiple decorators on same getter/setter ([#14584](prettier/prettier#14584) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```ts
// Input
class A {
  @decorator()
  get foo () {}
  
  @decorator()
  set foo (value) {}
}

// Prettier 2.8.6
SyntaxError: Decorators cannot be applied to multiple get/set accessors of the same name. (5:3)
  3 |   get foo () {}
  4 |   
> 5 |   @decorator()
    |   ^^^^^^^^^^^^
  6 |   set foo (value) {}
  7 | }

// Prettier 2.8.7
class A {
  @decorator()
  get foo() {}

  @decorator()
  set foo(value) {}
}
```
##### [\`v2.8.6\`](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#286)

[diff](prettier/prettier@2.8.5...2.8.6)

##### Allow decorators on private members and class expressions ([#14548](prettier/prettier#14548) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```ts
// Input
class A {
  @decorator()
  #privateMethod () {}
}

// Prettier 2.8.5
SyntaxError: Decorators are not valid here. (2:3)
  1 | class A {
> 2 |   @decorator()
    |   ^^^^^^^^^^^^
  3 |   #privateMethod () {}
  4 | }

// Prettier 2.8.6
class A {
  @decorator()
  #privateMethod() {}
}
```
##### [\`v2.8.5\`](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#285)

[diff](prettier/prettier@2.8.4...2.8.5)

##### Support TypeScript 5.0 ([#14391](prettier/prettier#14391) by [@fisker](https://github.com/fisker), [#13819](prettier/prettier#13819) by [@fisker](https://github.com/fisker), [@sosukesuzuki](https://github.com/sosukesuzuki))

TypeScript 5.0 introduces two new syntactic features:

-   `const` modifiers for type parameters
-   `export type *` declarations

##### Add missing parentheses for decorator ([#14393](prettier/prettier#14393) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
class Person {
  @(myDecoratorArray[0])
  greet() {}
}

// Prettier 2.8.4
class Person {
  @myDecoratorArray[0]
  greet() {}
}

// Prettier 2.8.5
class Person {
  @(myDecoratorArray[0])
  greet() {}
}
```

##### Add parentheses for `TypeofTypeAnnotation` to improve readability ([#14458](prettier/prettier#14458) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```tsx
// Input
type A = (typeof node.children)[];

// Prettier 2.8.4
type A = typeof node.children[];

// Prettier 2.8.5
type A = (typeof node.children)[];
```

##### Support `max_line_length=off` when parsing `.editorconfig` ([#14516](prettier/prettier#14516) by [@josephfrazier](https://github.com/josephfrazier))

If an .editorconfig file is in your project and it sets `max_line_length=off` for the file you're formatting,
it will be interpreted as a `printWidth` of `Infinity` rather than being ignored
(which previously resulted in the default `printWidth` of 80 being applied, if not overridden by Prettier-specific configuration).

<!-- prettier-ignore -->

```html
<!-- Input -->
<div className='HelloWorld' title={`You are visitor number ${ num }`} onMouseOver={onMouseOver}/>

<!-- Prettier 2.8.4 -->
<div
  className="HelloWorld"
  title={`You are visitor number ${num}`}
  onMouseOver={onMouseOver}
/>;

<!-- Prettier 2.8.5 -->
<div className="HelloWorld" title={`You are visitor number ${num}`} onMouseOver={onMouseOver} />;
```
##### [\`v2.8.4\`](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#284)

[diff](prettier/prettier@2.8.3...2.8.4)

##### Fix leading comments in mapped types with `readonly` ([#13427](prettier/prettier#13427) by [@thorn0](https://github.com/thorn0), [@sosukesuzuki](https://github.com/sosukesuzuki))

<!-- prettier-ignore -->

```tsx
// Input
type Type = {
  // comment
  readonly [key in Foo];
};

// Prettier 2.8.3
type Type = {
  readonly // comment
  [key in Foo];
};

// Prettier 2.8.4
type Type = {
  // comment
  readonly [key in Foo];
};
```

##### Group params in opening block statements ([#14067](prettier/prettier#14067) by [@jamescdavis](https://github.com/jamescdavis))

This is a follow-up to [#13930](prettier/prettier#13930) to establish wrapping consistency between opening block statements and else blocks by
grouping params in opening blocks. This causes params to break to a new line together and not be split across lines
unless the length of params exceeds the print width. This also updates the else block wrapping to behave exactly the
same as opening blocks.

<!-- prettier-ignore -->

```hbs
{{! Input }}
{{#block param param param param param param param param param param as |blockParam|}}
  Hello
{{else block param param param param param param param param param param as |blockParam|}}
  There
{{/block}}

{{! Prettier 2.8.3 }}
{{#block
  param
  param
  param
  param
  param
  param
  param
  param
  param
  param
  as |blockParam|
}}
  Hello
{{else block param
param
param
param
param
param
param
param
param
param}}
  There
{{/block}}

{{! Prettier 2.8.4 }}
{{#block
  param param param param param param param param param param
  as |blockParam|
}}
  Hello
{{else block
  param param param param param param param param param param
  as |blockParam|
}}
  There
{{/block}}
```

##### Ignore files in `.sl/` ([#14206](prettier/prettier#14206) by [@bolinfest](https://github.com/bolinfest))

In [Sapling SCM](https://sapling-scm.com/), `.sl/` is the folder where it stores its state, analogous to `.git/` in Git. It should be ignored in Prettier like the other SCM folders.

##### Recognize `@satisfies` in Closure-style type casts ([#14262](prettier/prettier#14262) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
const a = /** @Satisfies {Record<string, string>} */ ({hello: 1337});
const b = /** @type {Record<string, string>} */ ({hello: 1337});

// Prettier 2.8.3
const a = /** @Satisfies {Record<string, string>} */ { hello: 1337 };
const b = /** @type {Record<string, string>} */ ({ hello: 1337 });

// Prettier 2.8.4
const a = /** @Satisfies {Record<string, string>} */ ({hello: 1337});
const b = /** @type {Record<string, string>} */ ({hello: 1337});
```

##### Fix parens in inferred function return types with `extends` ([#14279](prettier/prettier#14279) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```ts
// Input
type Foo<T> = T extends ((a) => a is infer R extends string) ? R : never;

// Prettier 2.8.3 (First format)
type Foo<T> = T extends (a) => a is infer R extends string ? R : never;

// Prettier 2.8.3 (Second format)
SyntaxError: '?' expected. 

// Prettier 2.8.4
type Foo<T> = T extends ((a) => a is infer R extends string) ? R : never;
```
##### [\`v2.8.3\`](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#283)

[diff](prettier/prettier@2.8.2...2.8.3)

##### Allow self-closing tags on custom elements ([#14170](prettier/prettier#14170) by [@fisker](https://github.com/fisker))

See [Angular v15.1.0 release note](https://github.com/angular/angular/releases/tag/15.1.0) for details.

<!-- prettier-ignore -->

```html
// Input
<app-test/>

// Prettier 2.8.2
SyntaxError: Only void and foreign elements can be self closed "app-test" (1:1)
> 1 | <app-test/>
    | ^^^^^^^^^
  2 |

// Prettier 2.8.3
<app-test />
```
##### [\`v2.8.2\`](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#282)

[diff](prettier/prettier@2.8.1...2.8.2)

##### Don't lowercase link references ([#13155](prettier/prettier#13155) by [@DerekNonGeneric](https://github.com/DerekNonGeneric) & [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```markdown
<!-- Input -->
We now don't strictly follow the release notes format suggested by [Keep a Changelog].

[Keep a Changelog]: https://example.com/

<!-- Prettier 2.8.1 -->
We now don't strictly follow the release notes format suggested by [Keep a Changelog].

[keep a changelog]: https://example.com/
<!--
^^^^^^^^^^^^^^^^^^ lowercased
-->

<!-- Prettier 2.8.2 -->
<Same as input>
```

##### Preserve self-closing tags ([#13691](prettier/prettier#13691) by [@dcyriller](https://github.com/dcyriller))

<!-- prettier-ignore -->

```hbs
{{! Input }}
<div />
<div></div>
<custom-component />
<custom-component></custom-component>
<i />
<i></i>
<Component />
<Component></Component>

{{! Prettier 2.8.1 }}
<div></div>
<div></div>
<custom-component></custom-component>
<custom-component></custom-component>
<i></i>
<i></i>
<Component />
<Component />

{{! Prettier 2.8.2 }}
<div />
<div></div>
<custom-component />
<custom-component></custom-component>
<i />
<i></i>
<Component />
<Component />
```

##### Allow custom "else if"-like blocks with block params ([#13930](prettier/prettier#13930) by [@jamescdavis](https://github.com/jamescdavis))

[#13507](prettier/prettier#13507) added support for custom block keywords used with `else`, but failed to allow block params. This updates printer-glimmer to allow block params with custom "else if"-like blocks.

<!-- prettier-ignore -->

```hbs
{{! Input }}
{{#when isAtWork as |work|}}
  Ship that
  {{work}}!
{{else when isReading as |book|}}
  You can finish
  {{book}}
  eventually...
{{else}}
  Go to bed!
{{/when}}

{{! Prettier 2.8.1 }}
{{#when isAtWork as |work|}}
  Ship that
  {{work}}!
{{else when isReading}}
  You can finish
  {{book}}
  eventually...
{{else}}
  Go to bed!
{{/when}}

{{! Prettier 2.8.2 }}
{{#when isAtWork as |work|}}
  Ship that
  {{work}}!
{{else when isReading as |book|}}
  You can finish
  {{book}}
  eventually...
{{else}}
  Go to bed!
{{/when}}
```

##### Preserve empty lines between nested SCSS maps ([#13931](prettier/prettier#13931) by [@jneander](https://github.com/jneander))

<!-- prettier-ignore -->

```scss
/* Input */
$map: (
  'one': (
     'key': 'value',
  ),

  'two': (
     'key': 'value',
  ),
)

/* Prettier 2.8.1 */
$map: (
  'one': (
     'key': 'value',
  ),
  'two': (
     'key': 'value',
  ),
)

/* Prettier 2.8.2 */
$map: (
  'one': (
     'key': 'value',
  ),

  'two': (
     'key': 'value',
  ),
)
```

##### Fix missing parentheses when an expression statement starts with `let[` ([#14000](prettier/prettier#14000), [#14044](prettier/prettier#14044) by [@fisker](https://github.com/fisker), [@thorn0](https://github.com/thorn0))

<!-- prettier-ignore -->

```jsx
// Input
(let[0] = 2);

// Prettier 2.8.1
let[0] = 2;

// Prettier 2.8.1 (second format)
SyntaxError: Unexpected token (1:5)
> 1 | let[0] = 2;
    |     ^
  2 |

// Prettier 2.8.2
(let)[0] = 2;
```

##### Fix semicolon duplicated at the end of LESS file ([#14007](prettier/prettier#14007) by [@mvorisek](https://github.com/mvorisek))

<!-- prettier-ignore -->

```less
// Input
@variable: {
  field: something;
};

// Prettier 2.8.1
@variable: {
  field: something;
}; ;

// Prettier 2.8.2
@variable: {
  field: something;
};
```

##### Fix no space after unary minus when followed by opening parenthesis in LESS ([#14008](prettier/prettier#14008) by [@mvorisek](https://github.com/mvorisek))

<!-- prettier-ignore -->

```less
// Input
.unary_minus_single {
  margin: -(@A);
}

.unary_minus_multi {
  margin: 0 -(@A);
}

.binary_minus {
  margin: 0 - (@A);
}

// Prettier 2.8.1
.unary_minus_single {
  margin: - (@A);
}

.unary_minus_multi {
  margin: 0 - (@A);
}

.binary_minus {
  margin: 0 - (@A);
}

// Prettier 2.8.2
.unary_minus_single {
  margin: -(@A);
}

.unary_minus_multi {
  margin: 0 -(@A);
}

.binary_minus {
  margin: 0 - (@A);
}
```

##### Do not change case of property name if inside a variable declaration in LESS ([#14034](prettier/prettier#14034) by [@mvorisek](https://github.com/mvorisek))

<!-- prettier-ignore -->

```less
// Input
@var: {
  preserveCase: 0;
};

// Prettier 2.8.1
@var: {
  preservecase: 0;
};

// Prettier 2.8.2
@var: {
  preserveCase: 0;
};
```

##### Fix formatting for auto-accessors with comments ([#14038](prettier/prettier#14038) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
class A {
  @dec()
  // comment
  accessor b;
}

// Prettier 2.8.1
class A {
  @dec()
  accessor // comment
  b;
}

// Prettier 2.8.1 (second format)
class A {
  @dec()
  accessor; // comment
  b;
}

// Prettier 2.8.2
class A {
  @dec()
  // comment
  accessor b;
}
```

##### Add parentheses for TSTypeQuery to improve readability ([#14042](prettier/prettier#14042) by [@onishi-kohei](https://github.com/onishi-kohei))

<!-- prettier-ignore -->

```tsx
// Input
a as (typeof node.children)[number]
a as (typeof node.children)[]
a as ((typeof node.children)[number])[]

// Prettier 2.8.1
a as typeof node.children[number];
a as typeof node.children[];
a as typeof node.children[number][];

// Prettier 2.8.2
a as (typeof node.children)[number];
a as (typeof node.children)[];
a as (typeof node.children)[number][];
```

##### Fix displacing of comments in default switch case ([#14047](prettier/prettier#14047) by [@thorn0](https://github.com/thorn0))

It was a regression in Prettier 2.6.0.

<!-- prettier-ignore -->

```jsx
// Input
switch (state) {
  default:
    result = state; // no change
    break;
}

// Prettier 2.8.1
switch (state) {
  default: // no change
    result = state;
    break;
}

// Prettier 2.8.2
switch (state) {
  default:
    result = state; // no change
    break;
}
```

##### Support type annotations on auto accessors via `babel-ts` ([#14049](prettier/prettier#14049) by [@sosukesuzuki](https://github.com/sosukesuzuki))

[The bug that `@babel/parser` cannot parse auto accessors with type annotations](babel/babel#15205) has been fixed. So we now support it via `babel-ts` parser.

<!-- prettier-ignore -->

```tsx
class Foo {
  accessor prop: number;
}
```

##### Fix formatting of empty type parameters ([#14073](prettier/prettier#14073) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
const foo: bar</* comment */> = () => baz;

// Prettier 2.8.1
Error: Comment "comment" was not printed. Please report this error!

// Prettier 2.8.2
const foo: bar</* comment */> = () => baz;
```

##### Add parentheses to head of `ExpressionStatement` instead of the whole statement ([#14077](prettier/prettier#14077) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
({}).toString.call(foo) === "[object Array]"
  ? foo.forEach(iterateArray)
  : iterateObject(foo);

// Prettier 2.8.1
({}.toString.call(foo) === "[object Array]"
  ? foo.forEach(iterateArray)
  : iterateObject(foo));

// Prettier 2.8.2
({}).toString.call(foo.forEach) === "[object Array]"
  ? foo.forEach(iterateArray)
  : iterateObject(foo);
```

##### Fix comments after directive ([#14081](prettier/prettier#14081) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
"use strict" /* comment */;

// Prettier 2.8.1 (with other js parsers except `babel`)
Error: Comment "comment" was not printed. Please report this error!

// Prettier 2.8.2
<Same as input>
```

##### Fix formatting for comments inside JSX attribute ([#14082](prettier/prettier#14082) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
function MyFunctionComponent() {
  <button label=/*old*/"new">button</button>
}

// Prettier 2.8.1
Error: Comment "old" was not printed. Please report this error!

// Prettier 2.8.2
function MyFunctionComponent() {
  <button label=/*old*/ "new">button</button>;
}
```

##### Quote numeric keys for json-stringify parser ([#14083](prettier/prettier#14083) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
{0: 'value'}

// Prettier 2.8.1
{
  0: "value"
}

// Prettier 2.8.2
{
  "0": "value"
}
```

##### Fix removing commas from function arguments in maps ([#14089](prettier/prettier#14089) by [@sosukesuzuki](https://github.com/sosukesuzuki))

<!-- prettier-ignore -->

```scss
/* Input */
$foo: map-fn(
  (
    "#{prop}": inner-fn($first, $second),
  )
);

/* Prettier 2.8.1 */
$foo: map-fn(("#{prop}": inner-fn($first $second)));

/* Prettier 2.8.2 */
$foo: map-fn(
  (
    "#{prop}": inner-fn($first, $second),
  )
);

```

##### Do not insert space in LESS property access ([#14103](prettier/prettier#14103) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```less
// Input
a {
  color: @Colors[@white];
}

// Prettier 2.8.1
a {
  color: @Colors[ @white];
}

// Prettier 2.8.2
<Same as input>
```
##### [\`v2.8.1\`](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#281)

[diff](prettier/prettier@2.8.0...2.8.1)

##### Fix SCSS map in arguments ([#9184](prettier/prettier#9184) by [@agamkrbit](https://github.com/agamkrbit))

<!-- prettier-ignore -->

```scss
// Input
$display-breakpoints: map-deep-merge(
  (
    "print-only": "only print",
    "screen-only": "only screen",
    "xs-only": "only screen and (max-width: #{map-get($grid-breakpoints, "sm")-1})",
  ),
  $display-breakpoints
);

// Prettier 2.8.0
$display-breakpoints: map-deep-merge(
  (
    "print-only": "only print",
    "screen-only": "only screen",
    "xs-only": "only screen and (max-width: #{map-get($grid-breakpoints, " sm
      ")-1})",
  ),
  $display-breakpoints
);

// Prettier 2.8.1
$display-breakpoints: map-deep-merge(
  (
    "print-only": "only print",
    "screen-only": "only screen",
    "xs-only": "only screen and (max-width: #{map-get($grid-breakpoints, "sm")-1})",
  ),
  $display-breakpoints
);
```

##### Support auto accessors syntax ([#13919](prettier/prettier#13919) by [@sosukesuzuki](https://github.com/sosukesuzuki))

Support for [Auto Accessors Syntax](https://devblogs.microsoft.com/typescript/announcing-typescript-4-9/#auto-accessors-in-classes) landed in TypeScript 4.9.

(Doesn't work well with `babel-ts` parser)

<!-- prettier-ignore -->

```tsx
class Foo {
  accessor foo: number = 3;
}
```
##### [\`v2.8.0\`](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#280)

[diff](prettier/prettier@2.7.1...2.8.0)

🔗 [Release Notes](https://prettier.io/blog/2022/11/23/2.8.0.html)
##### [\`v2.7.1\`](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#271)

[diff](prettier/prettier@2.7.0...2.7.1)

##### Keep useful empty lines in description ([#13013](prettier/prettier#13013) by [@chimurai](https://github.com/chimurai))

<!-- prettier-ignore -->

```graphql
```
renovate bot added a commit to andrei-picus-tink/auto-renovate that referenced this pull request Aug 15, 2024
| datasource | package  | from  | to    |
| ---------- | -------- | ----- | ----- |
| npm        | prettier | 2.7.0 | 2.8.8 |


##### [\`v2.8.8\`](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#288)

This version is a republished version of v2.8.7.
A bad version was accidentally published and [it can't be unpublished](npm/cli#1686), apologies for the churn.
##### [\`v2.8.7\`](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#287)

[diff](prettier/prettier@2.8.6...2.8.7)

##### Allow multiple decorators on same getter/setter ([#14584](prettier/prettier#14584) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```ts
// Input
class A {
  @decorator()
  get foo () {}
  
  @decorator()
  set foo (value) {}
}

// Prettier 2.8.6
SyntaxError: Decorators cannot be applied to multiple get/set accessors of the same name. (5:3)
  3 |   get foo () {}
  4 |   
> 5 |   @decorator()
    |   ^^^^^^^^^^^^
  6 |   set foo (value) {}
  7 | }

// Prettier 2.8.7
class A {
  @decorator()
  get foo() {}

  @decorator()
  set foo(value) {}
}
```
##### [\`v2.8.6\`](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#286)

[diff](prettier/prettier@2.8.5...2.8.6)

##### Allow decorators on private members and class expressions ([#14548](prettier/prettier#14548) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```ts
// Input
class A {
  @decorator()
  #privateMethod () {}
}

// Prettier 2.8.5
SyntaxError: Decorators are not valid here. (2:3)
  1 | class A {
> 2 |   @decorator()
    |   ^^^^^^^^^^^^
  3 |   #privateMethod () {}
  4 | }

// Prettier 2.8.6
class A {
  @decorator()
  #privateMethod() {}
}
```
##### [\`v2.8.5\`](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#285)

[diff](prettier/prettier@2.8.4...2.8.5)

##### Support TypeScript 5.0 ([#14391](prettier/prettier#14391) by [@fisker](https://github.com/fisker), [#13819](prettier/prettier#13819) by [@fisker](https://github.com/fisker), [@sosukesuzuki](https://github.com/sosukesuzuki))

TypeScript 5.0 introduces two new syntactic features:

-   `const` modifiers for type parameters
-   `export type *` declarations

##### Add missing parentheses for decorator ([#14393](prettier/prettier#14393) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
class Person {
  @(myDecoratorArray[0])
  greet() {}
}

// Prettier 2.8.4
class Person {
  @myDecoratorArray[0]
  greet() {}
}

// Prettier 2.8.5
class Person {
  @(myDecoratorArray[0])
  greet() {}
}
```

##### Add parentheses for `TypeofTypeAnnotation` to improve readability ([#14458](prettier/prettier#14458) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```tsx
// Input
type A = (typeof node.children)[];

// Prettier 2.8.4
type A = typeof node.children[];

// Prettier 2.8.5
type A = (typeof node.children)[];
```

##### Support `max_line_length=off` when parsing `.editorconfig` ([#14516](prettier/prettier#14516) by [@josephfrazier](https://github.com/josephfrazier))

If an .editorconfig file is in your project and it sets `max_line_length=off` for the file you're formatting,
it will be interpreted as a `printWidth` of `Infinity` rather than being ignored
(which previously resulted in the default `printWidth` of 80 being applied, if not overridden by Prettier-specific configuration).

<!-- prettier-ignore -->

```html
<!-- Input -->
<div className='HelloWorld' title={`You are visitor number ${ num }`} onMouseOver={onMouseOver}/>

<!-- Prettier 2.8.4 -->
<div
  className="HelloWorld"
  title={`You are visitor number ${num}`}
  onMouseOver={onMouseOver}
/>;

<!-- Prettier 2.8.5 -->
<div className="HelloWorld" title={`You are visitor number ${num}`} onMouseOver={onMouseOver} />;
```
##### [\`v2.8.4\`](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#284)

[diff](prettier/prettier@2.8.3...2.8.4)

##### Fix leading comments in mapped types with `readonly` ([#13427](prettier/prettier#13427) by [@thorn0](https://github.com/thorn0), [@sosukesuzuki](https://github.com/sosukesuzuki))

<!-- prettier-ignore -->

```tsx
// Input
type Type = {
  // comment
  readonly [key in Foo];
};

// Prettier 2.8.3
type Type = {
  readonly // comment
  [key in Foo];
};

// Prettier 2.8.4
type Type = {
  // comment
  readonly [key in Foo];
};
```

##### Group params in opening block statements ([#14067](prettier/prettier#14067) by [@jamescdavis](https://github.com/jamescdavis))

This is a follow-up to [#13930](prettier/prettier#13930) to establish wrapping consistency between opening block statements and else blocks by
grouping params in opening blocks. This causes params to break to a new line together and not be split across lines
unless the length of params exceeds the print width. This also updates the else block wrapping to behave exactly the
same as opening blocks.

<!-- prettier-ignore -->

```hbs
{{! Input }}
{{#block param param param param param param param param param param as |blockParam|}}
  Hello
{{else block param param param param param param param param param param as |blockParam|}}
  There
{{/block}}

{{! Prettier 2.8.3 }}
{{#block
  param
  param
  param
  param
  param
  param
  param
  param
  param
  param
  as |blockParam|
}}
  Hello
{{else block param
param
param
param
param
param
param
param
param
param}}
  There
{{/block}}

{{! Prettier 2.8.4 }}
{{#block
  param param param param param param param param param param
  as |blockParam|
}}
  Hello
{{else block
  param param param param param param param param param param
  as |blockParam|
}}
  There
{{/block}}
```

##### Ignore files in `.sl/` ([#14206](prettier/prettier#14206) by [@bolinfest](https://github.com/bolinfest))

In [Sapling SCM](https://sapling-scm.com/), `.sl/` is the folder where it stores its state, analogous to `.git/` in Git. It should be ignored in Prettier like the other SCM folders.

##### Recognize `@satisfies` in Closure-style type casts ([#14262](prettier/prettier#14262) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
const a = /** @Satisfies {Record<string, string>} */ ({hello: 1337});
const b = /** @type {Record<string, string>} */ ({hello: 1337});

// Prettier 2.8.3
const a = /** @Satisfies {Record<string, string>} */ { hello: 1337 };
const b = /** @type {Record<string, string>} */ ({ hello: 1337 });

// Prettier 2.8.4
const a = /** @Satisfies {Record<string, string>} */ ({hello: 1337});
const b = /** @type {Record<string, string>} */ ({hello: 1337});
```

##### Fix parens in inferred function return types with `extends` ([#14279](prettier/prettier#14279) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```ts
// Input
type Foo<T> = T extends ((a) => a is infer R extends string) ? R : never;

// Prettier 2.8.3 (First format)
type Foo<T> = T extends (a) => a is infer R extends string ? R : never;

// Prettier 2.8.3 (Second format)
SyntaxError: '?' expected. 

// Prettier 2.8.4
type Foo<T> = T extends ((a) => a is infer R extends string) ? R : never;
```
##### [\`v2.8.3\`](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#283)

[diff](prettier/prettier@2.8.2...2.8.3)

##### Allow self-closing tags on custom elements ([#14170](prettier/prettier#14170) by [@fisker](https://github.com/fisker))

See [Angular v15.1.0 release note](https://github.com/angular/angular/releases/tag/15.1.0) for details.

<!-- prettier-ignore -->

```html
// Input
<app-test/>

// Prettier 2.8.2
SyntaxError: Only void and foreign elements can be self closed "app-test" (1:1)
> 1 | <app-test/>
    | ^^^^^^^^^
  2 |

// Prettier 2.8.3
<app-test />
```
##### [\`v2.8.2\`](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#282)

[diff](prettier/prettier@2.8.1...2.8.2)

##### Don't lowercase link references ([#13155](prettier/prettier#13155) by [@DerekNonGeneric](https://github.com/DerekNonGeneric) & [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```markdown
<!-- Input -->
We now don't strictly follow the release notes format suggested by [Keep a Changelog].

[Keep a Changelog]: https://example.com/

<!-- Prettier 2.8.1 -->
We now don't strictly follow the release notes format suggested by [Keep a Changelog].

[keep a changelog]: https://example.com/
<!--
^^^^^^^^^^^^^^^^^^ lowercased
-->

<!-- Prettier 2.8.2 -->
<Same as input>
```

##### Preserve self-closing tags ([#13691](prettier/prettier#13691) by [@dcyriller](https://github.com/dcyriller))

<!-- prettier-ignore -->

```hbs
{{! Input }}
<div />
<div></div>
<custom-component />
<custom-component></custom-component>
<i />
<i></i>
<Component />
<Component></Component>

{{! Prettier 2.8.1 }}
<div></div>
<div></div>
<custom-component></custom-component>
<custom-component></custom-component>
<i></i>
<i></i>
<Component />
<Component />

{{! Prettier 2.8.2 }}
<div />
<div></div>
<custom-component />
<custom-component></custom-component>
<i />
<i></i>
<Component />
<Component />
```

##### Allow custom "else if"-like blocks with block params ([#13930](prettier/prettier#13930) by [@jamescdavis](https://github.com/jamescdavis))

[#13507](prettier/prettier#13507) added support for custom block keywords used with `else`, but failed to allow block params. This updates printer-glimmer to allow block params with custom "else if"-like blocks.

<!-- prettier-ignore -->

```hbs
{{! Input }}
{{#when isAtWork as |work|}}
  Ship that
  {{work}}!
{{else when isReading as |book|}}
  You can finish
  {{book}}
  eventually...
{{else}}
  Go to bed!
{{/when}}

{{! Prettier 2.8.1 }}
{{#when isAtWork as |work|}}
  Ship that
  {{work}}!
{{else when isReading}}
  You can finish
  {{book}}
  eventually...
{{else}}
  Go to bed!
{{/when}}

{{! Prettier 2.8.2 }}
{{#when isAtWork as |work|}}
  Ship that
  {{work}}!
{{else when isReading as |book|}}
  You can finish
  {{book}}
  eventually...
{{else}}
  Go to bed!
{{/when}}
```

##### Preserve empty lines between nested SCSS maps ([#13931](prettier/prettier#13931) by [@jneander](https://github.com/jneander))

<!-- prettier-ignore -->

```scss
/* Input */
$map: (
  'one': (
     'key': 'value',
  ),

  'two': (
     'key': 'value',
  ),
)

/* Prettier 2.8.1 */
$map: (
  'one': (
     'key': 'value',
  ),
  'two': (
     'key': 'value',
  ),
)

/* Prettier 2.8.2 */
$map: (
  'one': (
     'key': 'value',
  ),

  'two': (
     'key': 'value',
  ),
)
```

##### Fix missing parentheses when an expression statement starts with `let[` ([#14000](prettier/prettier#14000), [#14044](prettier/prettier#14044) by [@fisker](https://github.com/fisker), [@thorn0](https://github.com/thorn0))

<!-- prettier-ignore -->

```jsx
// Input
(let[0] = 2);

// Prettier 2.8.1
let[0] = 2;

// Prettier 2.8.1 (second format)
SyntaxError: Unexpected token (1:5)
> 1 | let[0] = 2;
    |     ^
  2 |

// Prettier 2.8.2
(let)[0] = 2;
```

##### Fix semicolon duplicated at the end of LESS file ([#14007](prettier/prettier#14007) by [@mvorisek](https://github.com/mvorisek))

<!-- prettier-ignore -->

```less
// Input
@variable: {
  field: something;
};

// Prettier 2.8.1
@variable: {
  field: something;
}; ;

// Prettier 2.8.2
@variable: {
  field: something;
};
```

##### Fix no space after unary minus when followed by opening parenthesis in LESS ([#14008](prettier/prettier#14008) by [@mvorisek](https://github.com/mvorisek))

<!-- prettier-ignore -->

```less
// Input
.unary_minus_single {
  margin: -(@A);
}

.unary_minus_multi {
  margin: 0 -(@A);
}

.binary_minus {
  margin: 0 - (@A);
}

// Prettier 2.8.1
.unary_minus_single {
  margin: - (@A);
}

.unary_minus_multi {
  margin: 0 - (@A);
}

.binary_minus {
  margin: 0 - (@A);
}

// Prettier 2.8.2
.unary_minus_single {
  margin: -(@A);
}

.unary_minus_multi {
  margin: 0 -(@A);
}

.binary_minus {
  margin: 0 - (@A);
}
```

##### Do not change case of property name if inside a variable declaration in LESS ([#14034](prettier/prettier#14034) by [@mvorisek](https://github.com/mvorisek))

<!-- prettier-ignore -->

```less
// Input
@var: {
  preserveCase: 0;
};

// Prettier 2.8.1
@var: {
  preservecase: 0;
};

// Prettier 2.8.2
@var: {
  preserveCase: 0;
};
```

##### Fix formatting for auto-accessors with comments ([#14038](prettier/prettier#14038) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
class A {
  @dec()
  // comment
  accessor b;
}

// Prettier 2.8.1
class A {
  @dec()
  accessor // comment
  b;
}

// Prettier 2.8.1 (second format)
class A {
  @dec()
  accessor; // comment
  b;
}

// Prettier 2.8.2
class A {
  @dec()
  // comment
  accessor b;
}
```

##### Add parentheses for TSTypeQuery to improve readability ([#14042](prettier/prettier#14042) by [@onishi-kohei](https://github.com/onishi-kohei))

<!-- prettier-ignore -->

```tsx
// Input
a as (typeof node.children)[number]
a as (typeof node.children)[]
a as ((typeof node.children)[number])[]

// Prettier 2.8.1
a as typeof node.children[number];
a as typeof node.children[];
a as typeof node.children[number][];

// Prettier 2.8.2
a as (typeof node.children)[number];
a as (typeof node.children)[];
a as (typeof node.children)[number][];
```

##### Fix displacing of comments in default switch case ([#14047](prettier/prettier#14047) by [@thorn0](https://github.com/thorn0))

It was a regression in Prettier 2.6.0.

<!-- prettier-ignore -->

```jsx
// Input
switch (state) {
  default:
    result = state; // no change
    break;
}

// Prettier 2.8.1
switch (state) {
  default: // no change
    result = state;
    break;
}

// Prettier 2.8.2
switch (state) {
  default:
    result = state; // no change
    break;
}
```

##### Support type annotations on auto accessors via `babel-ts` ([#14049](prettier/prettier#14049) by [@sosukesuzuki](https://github.com/sosukesuzuki))

[The bug that `@babel/parser` cannot parse auto accessors with type annotations](babel/babel#15205) has been fixed. So we now support it via `babel-ts` parser.

<!-- prettier-ignore -->

```tsx
class Foo {
  accessor prop: number;
}
```

##### Fix formatting of empty type parameters ([#14073](prettier/prettier#14073) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
const foo: bar</* comment */> = () => baz;

// Prettier 2.8.1
Error: Comment "comment" was not printed. Please report this error!

// Prettier 2.8.2
const foo: bar</* comment */> = () => baz;
```

##### Add parentheses to head of `ExpressionStatement` instead of the whole statement ([#14077](prettier/prettier#14077) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
({}).toString.call(foo) === "[object Array]"
  ? foo.forEach(iterateArray)
  : iterateObject(foo);

// Prettier 2.8.1
({}.toString.call(foo) === "[object Array]"
  ? foo.forEach(iterateArray)
  : iterateObject(foo));

// Prettier 2.8.2
({}).toString.call(foo.forEach) === "[object Array]"
  ? foo.forEach(iterateArray)
  : iterateObject(foo);
```

##### Fix comments after directive ([#14081](prettier/prettier#14081) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
"use strict" /* comment */;

// Prettier 2.8.1 (with other js parsers except `babel`)
Error: Comment "comment" was not printed. Please report this error!

// Prettier 2.8.2
<Same as input>
```

##### Fix formatting for comments inside JSX attribute ([#14082](prettier/prettier#14082) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
function MyFunctionComponent() {
  <button label=/*old*/"new">button</button>
}

// Prettier 2.8.1
Error: Comment "old" was not printed. Please report this error!

// Prettier 2.8.2
function MyFunctionComponent() {
  <button label=/*old*/ "new">button</button>;
}
```

##### Quote numeric keys for json-stringify parser ([#14083](prettier/prettier#14083) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
{0: 'value'}

// Prettier 2.8.1
{
  0: "value"
}

// Prettier 2.8.2
{
  "0": "value"
}
```

##### Fix removing commas from function arguments in maps ([#14089](prettier/prettier#14089) by [@sosukesuzuki](https://github.com/sosukesuzuki))

<!-- prettier-ignore -->

```scss
/* Input */
$foo: map-fn(
  (
    "#{prop}": inner-fn($first, $second),
  )
);

/* Prettier 2.8.1 */
$foo: map-fn(("#{prop}": inner-fn($first $second)));

/* Prettier 2.8.2 */
$foo: map-fn(
  (
    "#{prop}": inner-fn($first, $second),
  )
);

```

##### Do not insert space in LESS property access ([#14103](prettier/prettier#14103) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```less
// Input
a {
  color: @Colors[@white];
}

// Prettier 2.8.1
a {
  color: @Colors[ @white];
}

// Prettier 2.8.2
<Same as input>
```
##### [\`v2.8.1\`](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#281)

[diff](prettier/prettier@2.8.0...2.8.1)

##### Fix SCSS map in arguments ([#9184](prettier/prettier#9184) by [@agamkrbit](https://github.com/agamkrbit))

<!-- prettier-ignore -->

```scss
// Input
$display-breakpoints: map-deep-merge(
  (
    "print-only": "only print",
    "screen-only": "only screen",
    "xs-only": "only screen and (max-width: #{map-get($grid-breakpoints, "sm")-1})",
  ),
  $display-breakpoints
);

// Prettier 2.8.0
$display-breakpoints: map-deep-merge(
  (
    "print-only": "only print",
    "screen-only": "only screen",
    "xs-only": "only screen and (max-width: #{map-get($grid-breakpoints, " sm
      ")-1})",
  ),
  $display-breakpoints
);

// Prettier 2.8.1
$display-breakpoints: map-deep-merge(
  (
    "print-only": "only print",
    "screen-only": "only screen",
    "xs-only": "only screen and (max-width: #{map-get($grid-breakpoints, "sm")-1})",
  ),
  $display-breakpoints
);
```

##### Support auto accessors syntax ([#13919](prettier/prettier#13919) by [@sosukesuzuki](https://github.com/sosukesuzuki))

Support for [Auto Accessors Syntax](https://devblogs.microsoft.com/typescript/announcing-typescript-4-9/#auto-accessors-in-classes) landed in TypeScript 4.9.

(Doesn't work well with `babel-ts` parser)

<!-- prettier-ignore -->

```tsx
class Foo {
  accessor foo: number = 3;
}
```
##### [\`v2.8.0\`](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#280)

[diff](prettier/prettier@2.7.1...2.8.0)

🔗 [Release Notes](https://prettier.io/blog/2022/11/23/2.8.0.html)
##### [\`v2.7.1\`](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#271)

[diff](prettier/prettier@2.7.0...2.7.1)

##### Keep useful empty lines in description ([#13013](prettier/prettier#13013) by [@chimurai](https://github.com/chimurai))

<!-- prettier-ignore -->

```graphql
```
renovate bot added a commit to andrei-picus-tink/auto-renovate that referenced this pull request Aug 15, 2024
| datasource | package  | from  | to    |
| ---------- | -------- | ----- | ----- |
| npm        | prettier | 2.7.0 | 2.8.8 |


## [v2.8.8](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#288)

This version is a republished version of v2.8.7.
A bad version was accidentally published and [it can't be unpublished](npm/cli#1686), apologies for the churn.


## [v2.8.7](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#287)

[diff](prettier/prettier@2.8.6...2.8.7)

##### Allow multiple decorators on same getter/setter ([#14584](prettier/prettier#14584) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```ts
// Input
class A {
  @decorator()
  get foo () {}
  
  @decorator()
  set foo (value) {}
}

// Prettier 2.8.6
SyntaxError: Decorators cannot be applied to multiple get/set accessors of the same name. (5:3)
  3 |   get foo () {}
  4 |   
> 5 |   @decorator()
    |   ^^^^^^^^^^^^
  6 |   set foo (value) {}
  7 | }

// Prettier 2.8.7
class A {
  @decorator()
  get foo() {}

  @decorator()
  set foo(value) {}
}
```


## [v2.8.6](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#286)

[diff](prettier/prettier@2.8.5...2.8.6)

##### Allow decorators on private members and class expressions ([#14548](prettier/prettier#14548) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```ts
// Input
class A {
  @decorator()
  #privateMethod () {}
}

// Prettier 2.8.5
SyntaxError: Decorators are not valid here. (2:3)
  1 | class A {
> 2 |   @decorator()
    |   ^^^^^^^^^^^^
  3 |   #privateMethod () {}
  4 | }

// Prettier 2.8.6
class A {
  @decorator()
  #privateMethod() {}
}
```


## [v2.8.5](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#285)

[diff](prettier/prettier@2.8.4...2.8.5)

##### Support TypeScript 5.0 ([#14391](prettier/prettier#14391) by [@fisker](https://github.com/fisker), [#13819](prettier/prettier#13819) by [@fisker](https://github.com/fisker), [@sosukesuzuki](https://github.com/sosukesuzuki))

TypeScript 5.0 introduces two new syntactic features:

-   `const` modifiers for type parameters
-   `export type *` declarations

##### Add missing parentheses for decorator ([#14393](prettier/prettier#14393) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
class Person {
  @(myDecoratorArray[0])
  greet() {}
}

// Prettier 2.8.4
class Person {
  @myDecoratorArray[0]
  greet() {}
}

// Prettier 2.8.5
class Person {
  @(myDecoratorArray[0])
  greet() {}
}
```

##### Add parentheses for `TypeofTypeAnnotation` to improve readability ([#14458](prettier/prettier#14458) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```tsx
// Input
type A = (typeof node.children)[];

// Prettier 2.8.4
type A = typeof node.children[];

// Prettier 2.8.5
type A = (typeof node.children)[];
```

##### Support `max_line_length=off` when parsing `.editorconfig` ([#14516](prettier/prettier#14516) by [@josephfrazier](https://github.com/josephfrazier))

If an .editorconfig file is in your project and it sets `max_line_length=off` for the file you're formatting,
it will be interpreted as a `printWidth` of `Infinity` rather than being ignored
(which previously resulted in the default `printWidth` of 80 being applied, if not overridden by Prettier-specific configuration).

<!-- prettier-ignore -->

```html
<!-- Input -->
<div className='HelloWorld' title={`You are visitor number ${ num }`} onMouseOver={onMouseOver}/>

<!-- Prettier 2.8.4 -->
<div
  className="HelloWorld"
  title={`You are visitor number ${num}`}
  onMouseOver={onMouseOver}
/>;

<!-- Prettier 2.8.5 -->
<div className="HelloWorld" title={`You are visitor number ${num}`} onMouseOver={onMouseOver} />;
```


## [v2.8.4](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#284)

[diff](prettier/prettier@2.8.3...2.8.4)

##### Fix leading comments in mapped types with `readonly` ([#13427](prettier/prettier#13427) by [@thorn0](https://github.com/thorn0), [@sosukesuzuki](https://github.com/sosukesuzuki))

<!-- prettier-ignore -->

```tsx
// Input
type Type = {
  // comment
  readonly [key in Foo];
};

// Prettier 2.8.3
type Type = {
  readonly // comment
  [key in Foo];
};

// Prettier 2.8.4
type Type = {
  // comment
  readonly [key in Foo];
};
```

##### Group params in opening block statements ([#14067](prettier/prettier#14067) by [@jamescdavis](https://github.com/jamescdavis))

This is a follow-up to [#13930](prettier/prettier#13930) to establish wrapping consistency between opening block statements and else blocks by
grouping params in opening blocks. This causes params to break to a new line together and not be split across lines
unless the length of params exceeds the print width. This also updates the else block wrapping to behave exactly the
same as opening blocks.

<!-- prettier-ignore -->

```hbs
{{! Input }}
{{#block param param param param param param param param param param as |blockParam|}}
  Hello
{{else block param param param param param param param param param param as |blockParam|}}
  There
{{/block}}

{{! Prettier 2.8.3 }}
{{#block
  param
  param
  param
  param
  param
  param
  param
  param
  param
  param
  as |blockParam|
}}
  Hello
{{else block param
param
param
param
param
param
param
param
param
param}}
  There
{{/block}}

{{! Prettier 2.8.4 }}
{{#block
  param param param param param param param param param param
  as |blockParam|
}}
  Hello
{{else block
  param param param param param param param param param param
  as |blockParam|
}}
  There
{{/block}}
```

##### Ignore files in `.sl/` ([#14206](prettier/prettier#14206) by [@bolinfest](https://github.com/bolinfest))

In [Sapling SCM](https://sapling-scm.com/), `.sl/` is the folder where it stores its state, analogous to `.git/` in Git. It should be ignored in Prettier like the other SCM folders.

##### Recognize `@satisfies` in Closure-style type casts ([#14262](prettier/prettier#14262) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
const a = /** @Satisfies {Record<string, string>} */ ({hello: 1337});
const b = /** @type {Record<string, string>} */ ({hello: 1337});

// Prettier 2.8.3
const a = /** @Satisfies {Record<string, string>} */ { hello: 1337 };
const b = /** @type {Record<string, string>} */ ({ hello: 1337 });

// Prettier 2.8.4
const a = /** @Satisfies {Record<string, string>} */ ({hello: 1337});
const b = /** @type {Record<string, string>} */ ({hello: 1337});
```

##### Fix parens in inferred function return types with `extends` ([#14279](prettier/prettier#14279) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```ts
// Input
type Foo<T> = T extends ((a) => a is infer R extends string) ? R : never;

// Prettier 2.8.3 (First format)
type Foo<T> = T extends (a) => a is infer R extends string ? R : never;

// Prettier 2.8.3 (Second format)
SyntaxError: '?' expected. 

// Prettier 2.8.4
type Foo<T> = T extends ((a) => a is infer R extends string) ? R : never;
```


## [v2.8.3](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#283)

[diff](prettier/prettier@2.8.2...2.8.3)

##### Allow self-closing tags on custom elements ([#14170](prettier/prettier#14170) by [@fisker](https://github.com/fisker))

See [Angular v15.1.0 release note](https://github.com/angular/angular/releases/tag/15.1.0) for details.

<!-- prettier-ignore -->

```html
// Input
<app-test/>

// Prettier 2.8.2
SyntaxError: Only void and foreign elements can be self closed "app-test" (1:1)
> 1 | <app-test/>
    | ^^^^^^^^^
  2 |

// Prettier 2.8.3
<app-test />
```


## [v2.8.2](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#282)

[diff](prettier/prettier@2.8.1...2.8.2)

##### Don't lowercase link references ([#13155](prettier/prettier#13155) by [@DerekNonGeneric](https://github.com/DerekNonGeneric) & [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```markdown
<!-- Input -->
We now don't strictly follow the release notes format suggested by [Keep a Changelog].

[Keep a Changelog]: https://example.com/

<!-- Prettier 2.8.1 -->
We now don't strictly follow the release notes format suggested by [Keep a Changelog].

[keep a changelog]: https://example.com/
<!--
^^^^^^^^^^^^^^^^^^ lowercased
-->

<!-- Prettier 2.8.2 -->
<Same as input>
```

##### Preserve self-closing tags ([#13691](prettier/prettier#13691) by [@dcyriller](https://github.com/dcyriller))

<!-- prettier-ignore -->

```hbs
{{! Input }}
<div />
<div></div>
<custom-component />
<custom-component></custom-component>
<i />
<i></i>
<Component />
<Component></Component>

{{! Prettier 2.8.1 }}
<div></div>
<div></div>
<custom-component></custom-component>
<custom-component></custom-component>
<i></i>
<i></i>
<Component />
<Component />

{{! Prettier 2.8.2 }}
<div />
<div></div>
<custom-component />
<custom-component></custom-component>
<i />
<i></i>
<Component />
<Component />
```

##### Allow custom "else if"-like blocks with block params ([#13930](prettier/prettier#13930) by [@jamescdavis](https://github.com/jamescdavis))

[#13507](prettier/prettier#13507) added support for custom block keywords used with `else`, but failed to allow block params. This updates printer-glimmer to allow block params with custom "else if"-like blocks.

<!-- prettier-ignore -->

```hbs
{{! Input }}
{{#when isAtWork as |work|}}
  Ship that
  {{work}}!
{{else when isReading as |book|}}
  You can finish
  {{book}}
  eventually...
{{else}}
  Go to bed!
{{/when}}

{{! Prettier 2.8.1 }}
{{#when isAtWork as |work|}}
  Ship that
  {{work}}!
{{else when isReading}}
  You can finish
  {{book}}
  eventually...
{{else}}
  Go to bed!
{{/when}}

{{! Prettier 2.8.2 }}
{{#when isAtWork as |work|}}
  Ship that
  {{work}}!
{{else when isReading as |book|}}
  You can finish
  {{book}}
  eventually...
{{else}}
  Go to bed!
{{/when}}
```

##### Preserve empty lines between nested SCSS maps ([#13931](prettier/prettier#13931) by [@jneander](https://github.com/jneander))

<!-- prettier-ignore -->

```scss
/* Input */
$map: (
  'one': (
     'key': 'value',
  ),

  'two': (
     'key': 'value',
  ),
)

/* Prettier 2.8.1 */
$map: (
  'one': (
     'key': 'value',
  ),
  'two': (
     'key': 'value',
  ),
)

/* Prettier 2.8.2 */
$map: (
  'one': (
     'key': 'value',
  ),

  'two': (
     'key': 'value',
  ),
)
```

##### Fix missing parentheses when an expression statement starts with `let[` ([#14000](prettier/prettier#14000), [#14044](prettier/prettier#14044) by [@fisker](https://github.com/fisker), [@thorn0](https://github.com/thorn0))

<!-- prettier-ignore -->

```jsx
// Input
(let[0] = 2);

// Prettier 2.8.1
let[0] = 2;

// Prettier 2.8.1 (second format)
SyntaxError: Unexpected token (1:5)
> 1 | let[0] = 2;
    |     ^
  2 |

// Prettier 2.8.2
(let)[0] = 2;
```

##### Fix semicolon duplicated at the end of LESS file ([#14007](prettier/prettier#14007) by [@mvorisek](https://github.com/mvorisek))

<!-- prettier-ignore -->

```less
// Input
@variable: {
  field: something;
};

// Prettier 2.8.1
@variable: {
  field: something;
}; ;

// Prettier 2.8.2
@variable: {
  field: something;
};
```

##### Fix no space after unary minus when followed by opening parenthesis in LESS ([#14008](prettier/prettier#14008) by [@mvorisek](https://github.com/mvorisek))

<!-- prettier-ignore -->

```less
// Input
.unary_minus_single {
  margin: -(@A);
}

.unary_minus_multi {
  margin: 0 -(@A);
}

.binary_minus {
  margin: 0 - (@A);
}

// Prettier 2.8.1
.unary_minus_single {
  margin: - (@A);
}

.unary_minus_multi {
  margin: 0 - (@A);
}

.binary_minus {
  margin: 0 - (@A);
}

// Prettier 2.8.2
.unary_minus_single {
  margin: -(@A);
}

.unary_minus_multi {
  margin: 0 -(@A);
}

.binary_minus {
  margin: 0 - (@A);
}
```

##### Do not change case of property name if inside a variable declaration in LESS ([#14034](prettier/prettier#14034) by [@mvorisek](https://github.com/mvorisek))

<!-- prettier-ignore -->

```less
// Input
@var: {
  preserveCase: 0;
};

// Prettier 2.8.1
@var: {
  preservecase: 0;
};

// Prettier 2.8.2
@var: {
  preserveCase: 0;
};
```

##### Fix formatting for auto-accessors with comments ([#14038](prettier/prettier#14038) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
class A {
  @dec()
  // comment
  accessor b;
}

// Prettier 2.8.1
class A {
  @dec()
  accessor // comment
  b;
}

// Prettier 2.8.1 (second format)
class A {
  @dec()
  accessor; // comment
  b;
}

// Prettier 2.8.2
class A {
  @dec()
  // comment
  accessor b;
}
```

##### Add parentheses for TSTypeQuery to improve readability ([#14042](prettier/prettier#14042) by [@onishi-kohei](https://github.com/onishi-kohei))

<!-- prettier-ignore -->

```tsx
// Input
a as (typeof node.children)[number]
a as (typeof node.children)[]
a as ((typeof node.children)[number])[]

// Prettier 2.8.1
a as typeof node.children[number];
a as typeof node.children[];
a as typeof node.children[number][];

// Prettier 2.8.2
a as (typeof node.children)[number];
a as (typeof node.children)[];
a as (typeof node.children)[number][];
```

##### Fix displacing of comments in default switch case ([#14047](prettier/prettier#14047) by [@thorn0](https://github.com/thorn0))

It was a regression in Prettier 2.6.0.

<!-- prettier-ignore -->

```jsx
// Input
switch (state) {
  default:
    result = state; // no change
    break;
}

// Prettier 2.8.1
switch (state) {
  default: // no change
    result = state;
    break;
}

// Prettier 2.8.2
switch (state) {
  default:
    result = state; // no change
    break;
}
```

##### Support type annotations on auto accessors via `babel-ts` ([#14049](prettier/prettier#14049) by [@sosukesuzuki](https://github.com/sosukesuzuki))

[The bug that `@babel/parser` cannot parse auto accessors with type annotations](babel/babel#15205) has been fixed. So we now support it via `babel-ts` parser.

<!-- prettier-ignore -->

```tsx
class Foo {
  accessor prop: number;
}
```

##### Fix formatting of empty type parameters ([#14073](prettier/prettier#14073) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
const foo: bar</* comment */> = () => baz;

// Prettier 2.8.1
Error: Comment "comment" was not printed. Please report this error!

// Prettier 2.8.2
const foo: bar</* comment */> = () => baz;
```

##### Add parentheses to head of `ExpressionStatement` instead of the whole statement ([#14077](prettier/prettier#14077) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
({}).toString.call(foo) === "[object Array]"
  ? foo.forEach(iterateArray)
  : iterateObject(foo);

// Prettier 2.8.1
({}.toString.call(foo) === "[object Array]"
  ? foo.forEach(iterateArray)
  : iterateObject(foo));

// Prettier 2.8.2
({}).toString.call(foo.forEach) === "[object Array]"
  ? foo.forEach(iterateArray)
  : iterateObject(foo);
```

##### Fix comments after directive ([#14081](prettier/prettier#14081) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
"use strict" /* comment */;

// Prettier 2.8.1 (with other js parsers except `babel`)
Error: Comment "comment" was not printed. Please report this error!

// Prettier 2.8.2
<Same as input>
```

##### Fix formatting for comments inside JSX attribute ([#14082](prettier/prettier#14082) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
function MyFunctionComponent() {
  <button label=/*old*/"new">button</button>
}

// Prettier 2.8.1
Error: Comment "old" was not printed. Please report this error!

// Prettier 2.8.2
function MyFunctionComponent() {
  <button label=/*old*/ "new">button</button>;
}
```

##### Quote numeric keys for json-stringify parser ([#14083](prettier/prettier#14083) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
{0: 'value'}

// Prettier 2.8.1
{
  0: "value"
}

// Prettier 2.8.2
{
  "0": "value"
}
```

##### Fix removing commas from function arguments in maps ([#14089](prettier/prettier#14089) by [@sosukesuzuki](https://github.com/sosukesuzuki))

<!-- prettier-ignore -->

```scss
/* Input */
$foo: map-fn(
  (
    "#{prop}": inner-fn($first, $second),
  )
);

/* Prettier 2.8.1 */
$foo: map-fn(("#{prop}": inner-fn($first $second)));

/* Prettier 2.8.2 */
$foo: map-fn(
  (
    "#{prop}": inner-fn($first, $second),
  )
);

```

##### Do not insert space in LESS property access ([#14103](prettier/prettier#14103) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```less
// Input
a {
  color: @Colors[@white];
}

// Prettier 2.8.1
a {
  color: @Colors[ @white];
}

// Prettier 2.8.2
<Same as input>
```


## [v2.8.1](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#281)

[diff](prettier/prettier@2.8.0...2.8.1)

##### Fix SCSS map in arguments ([#9184](prettier/prettier#9184) by [@agamkrbit](https://github.com/agamkrbit))

<!-- prettier-ignore -->

```scss
// Input
$display-breakpoints: map-deep-merge(
  (
    "print-only": "only print",
    "screen-only": "only screen",
    "xs-only": "only screen and (max-width: #{map-get($grid-breakpoints, "sm")-1})",
  ),
  $display-breakpoints
);

// Prettier 2.8.0
$display-breakpoints: map-deep-merge(
  (
    "print-only": "only print",
    "screen-only": "only screen",
    "xs-only": "only screen and (max-width: #{map-get($grid-breakpoints, " sm
      ")-1})",
  ),
  $display-breakpoints
);

// Prettier 2.8.1
$display-breakpoints: map-deep-merge(
  (
    "print-only": "only print",
    "screen-only": "only screen",
    "xs-only": "only screen and (max-width: #{map-get($grid-breakpoints, "sm")-1})",
  ),
  $display-breakpoints
);
```

##### Support auto accessors syntax ([#13919](prettier/prettier#13919) by [@sosukesuzuki](https://github.com/sosukesuzuki))

Support for [Auto Accessors Syntax](https://devblogs.microsoft.com/typescript/announcing-typescript-4-9/#auto-accessors-in-classes) landed in TypeScript 4.9.

(Doesn't work well with `babel-ts` parser)

<!-- prettier-ignore -->

```tsx
class Foo {
  accessor foo: number = 3;
}
```


## [v2.8.0](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#280)

[diff](prettier/prettier@2.7.1...2.8.0)

🔗 [Release Notes](https://prettier.io/blog/2022/11/23/2.8.0.html)


## [v2.7.1](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#271)

[diff](prettier/prettier@2.7.0...2.7.1)

##### Keep useful empty lines in description ([#13013](prettier/prettier#13013) by [@chimurai](https://github.com/chimurai))

<!-- prettier-ignore -->

```graphql
```
renovate bot added a commit to andrei-picus-tink/auto-renovate that referenced this pull request Aug 15, 2024
| datasource | package  | from  | to    |
| ---------- | -------- | ----- | ----- |
| npm        | prettier | 2.7.0 | 2.8.8 |


## [v2.8.8](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#288)

This version is a republished version of v2.8.7.
A bad version was accidentally published and [it can't be unpublished](npm/cli#1686), apologies for the churn.


## [v2.8.7](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#287)

[diff](prettier/prettier@2.8.6...2.8.7)

##### Allow multiple decorators on same getter/setter ([#14584](prettier/prettier#14584) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```ts
// Input
class A {
  @decorator()
  get foo () {}
  
  @decorator()
  set foo (value) {}
}

// Prettier 2.8.6
SyntaxError: Decorators cannot be applied to multiple get/set accessors of the same name. (5:3)
  3 |   get foo () {}
  4 |   
> 5 |   @decorator()
    |   ^^^^^^^^^^^^
  6 |   set foo (value) {}
  7 | }

// Prettier 2.8.7
class A {
  @decorator()
  get foo() {}

  @decorator()
  set foo(value) {}
}
```


## [v2.8.6](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#286)

[diff](prettier/prettier@2.8.5...2.8.6)

##### Allow decorators on private members and class expressions ([#14548](prettier/prettier#14548) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```ts
// Input
class A {
  @decorator()
  #privateMethod () {}
}

// Prettier 2.8.5
SyntaxError: Decorators are not valid here. (2:3)
  1 | class A {
> 2 |   @decorator()
    |   ^^^^^^^^^^^^
  3 |   #privateMethod () {}
  4 | }

// Prettier 2.8.6
class A {
  @decorator()
  #privateMethod() {}
}
```


## [v2.8.5](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#285)

[diff](prettier/prettier@2.8.4...2.8.5)

##### Support TypeScript 5.0 ([#14391](prettier/prettier#14391) by [@fisker](https://github.com/fisker), [#13819](prettier/prettier#13819) by [@fisker](https://github.com/fisker), [@sosukesuzuki](https://github.com/sosukesuzuki))

TypeScript 5.0 introduces two new syntactic features:

-   `const` modifiers for type parameters
-   `export type *` declarations

##### Add missing parentheses for decorator ([#14393](prettier/prettier#14393) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
class Person {
  @(myDecoratorArray[0])
  greet() {}
}

// Prettier 2.8.4
class Person {
  @myDecoratorArray[0]
  greet() {}
}

// Prettier 2.8.5
class Person {
  @(myDecoratorArray[0])
  greet() {}
}
```

##### Add parentheses for `TypeofTypeAnnotation` to improve readability ([#14458](prettier/prettier#14458) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```tsx
// Input
type A = (typeof node.children)[];

// Prettier 2.8.4
type A = typeof node.children[];

// Prettier 2.8.5
type A = (typeof node.children)[];
```

##### Support `max_line_length=off` when parsing `.editorconfig` ([#14516](prettier/prettier#14516) by [@josephfrazier](https://github.com/josephfrazier))

If an .editorconfig file is in your project and it sets `max_line_length=off` for the file you're formatting,
it will be interpreted as a `printWidth` of `Infinity` rather than being ignored
(which previously resulted in the default `printWidth` of 80 being applied, if not overridden by Prettier-specific configuration).

<!-- prettier-ignore -->

```html
<!-- Input -->
<div className='HelloWorld' title={`You are visitor number ${ num }`} onMouseOver={onMouseOver}/>

<!-- Prettier 2.8.4 -->
<div
  className="HelloWorld"
  title={`You are visitor number ${num}`}
  onMouseOver={onMouseOver}
/>;

<!-- Prettier 2.8.5 -->
<div className="HelloWorld" title={`You are visitor number ${num}`} onMouseOver={onMouseOver} />;
```


## [v2.8.4](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#284)

[diff](prettier/prettier@2.8.3...2.8.4)

##### Fix leading comments in mapped types with `readonly` ([#13427](prettier/prettier#13427) by [@thorn0](https://github.com/thorn0), [@sosukesuzuki](https://github.com/sosukesuzuki))

<!-- prettier-ignore -->

```tsx
// Input
type Type = {
  // comment
  readonly [key in Foo];
};

// Prettier 2.8.3
type Type = {
  readonly // comment
  [key in Foo];
};

// Prettier 2.8.4
type Type = {
  // comment
  readonly [key in Foo];
};
```

##### Group params in opening block statements ([#14067](prettier/prettier#14067) by [@jamescdavis](https://github.com/jamescdavis))

This is a follow-up to [#13930](prettier/prettier#13930) to establish wrapping consistency between opening block statements and else blocks by
grouping params in opening blocks. This causes params to break to a new line together and not be split across lines
unless the length of params exceeds the print width. This also updates the else block wrapping to behave exactly the
same as opening blocks.

<!-- prettier-ignore -->

```hbs
{{! Input }}
{{#block param param param param param param param param param param as |blockParam|}}
  Hello
{{else block param param param param param param param param param param as |blockParam|}}
  There
{{/block}}

{{! Prettier 2.8.3 }}
{{#block
  param
  param
  param
  param
  param
  param
  param
  param
  param
  param
  as |blockParam|
}}
  Hello
{{else block param
param
param
param
param
param
param
param
param
param}}
  There
{{/block}}

{{! Prettier 2.8.4 }}
{{#block
  param param param param param param param param param param
  as |blockParam|
}}
  Hello
{{else block
  param param param param param param param param param param
  as |blockParam|
}}
  There
{{/block}}
```

##### Ignore files in `.sl/` ([#14206](prettier/prettier#14206) by [@bolinfest](https://github.com/bolinfest))

In [Sapling SCM](https://sapling-scm.com/), `.sl/` is the folder where it stores its state, analogous to `.git/` in Git. It should be ignored in Prettier like the other SCM folders.

##### Recognize `@satisfies` in Closure-style type casts ([#14262](prettier/prettier#14262) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
const a = /** @Satisfies {Record<string, string>} */ ({hello: 1337});
const b = /** @type {Record<string, string>} */ ({hello: 1337});

// Prettier 2.8.3
const a = /** @Satisfies {Record<string, string>} */ { hello: 1337 };
const b = /** @type {Record<string, string>} */ ({ hello: 1337 });

// Prettier 2.8.4
const a = /** @Satisfies {Record<string, string>} */ ({hello: 1337});
const b = /** @type {Record<string, string>} */ ({hello: 1337});
```

##### Fix parens in inferred function return types with `extends` ([#14279](prettier/prettier#14279) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```ts
// Input
type Foo<T> = T extends ((a) => a is infer R extends string) ? R : never;

// Prettier 2.8.3 (First format)
type Foo<T> = T extends (a) => a is infer R extends string ? R : never;

// Prettier 2.8.3 (Second format)
SyntaxError: '?' expected. 

// Prettier 2.8.4
type Foo<T> = T extends ((a) => a is infer R extends string) ? R : never;
```


## [v2.8.3](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#283)

[diff](prettier/prettier@2.8.2...2.8.3)

##### Allow self-closing tags on custom elements ([#14170](prettier/prettier#14170) by [@fisker](https://github.com/fisker))

See [Angular v15.1.0 release note](https://github.com/angular/angular/releases/tag/15.1.0) for details.

<!-- prettier-ignore -->

```html
// Input
<app-test/>

// Prettier 2.8.2
SyntaxError: Only void and foreign elements can be self closed "app-test" (1:1)
> 1 | <app-test/>
    | ^^^^^^^^^
  2 |

// Prettier 2.8.3
<app-test />
```


## [v2.8.2](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#282)

[diff](prettier/prettier@2.8.1...2.8.2)

##### Don't lowercase link references ([#13155](prettier/prettier#13155) by [@DerekNonGeneric](https://github.com/DerekNonGeneric) & [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```markdown
<!-- Input -->
We now don't strictly follow the release notes format suggested by [Keep a Changelog].

[Keep a Changelog]: https://example.com/

<!-- Prettier 2.8.1 -->
We now don't strictly follow the release notes format suggested by [Keep a Changelog].

[keep a changelog]: https://example.com/
<!--
^^^^^^^^^^^^^^^^^^ lowercased
-->

<!-- Prettier 2.8.2 -->
<Same as input>
```

##### Preserve self-closing tags ([#13691](prettier/prettier#13691) by [@dcyriller](https://github.com/dcyriller))

<!-- prettier-ignore -->

```hbs
{{! Input }}
<div />
<div></div>
<custom-component />
<custom-component></custom-component>
<i />
<i></i>
<Component />
<Component></Component>

{{! Prettier 2.8.1 }}
<div></div>
<div></div>
<custom-component></custom-component>
<custom-component></custom-component>
<i></i>
<i></i>
<Component />
<Component />

{{! Prettier 2.8.2 }}
<div />
<div></div>
<custom-component />
<custom-component></custom-component>
<i />
<i></i>
<Component />
<Component />
```

##### Allow custom "else if"-like blocks with block params ([#13930](prettier/prettier#13930) by [@jamescdavis](https://github.com/jamescdavis))

[#13507](prettier/prettier#13507) added support for custom block keywords used with `else`, but failed to allow block params. This updates printer-glimmer to allow block params with custom "else if"-like blocks.

<!-- prettier-ignore -->

```hbs
{{! Input }}
{{#when isAtWork as |work|}}
  Ship that
  {{work}}!
{{else when isReading as |book|}}
  You can finish
  {{book}}
  eventually...
{{else}}
  Go to bed!
{{/when}}

{{! Prettier 2.8.1 }}
{{#when isAtWork as |work|}}
  Ship that
  {{work}}!
{{else when isReading}}
  You can finish
  {{book}}
  eventually...
{{else}}
  Go to bed!
{{/when}}

{{! Prettier 2.8.2 }}
{{#when isAtWork as |work|}}
  Ship that
  {{work}}!
{{else when isReading as |book|}}
  You can finish
  {{book}}
  eventually...
{{else}}
  Go to bed!
{{/when}}
```

##### Preserve empty lines between nested SCSS maps ([#13931](prettier/prettier#13931) by [@jneander](https://github.com/jneander))

<!-- prettier-ignore -->

```scss
/* Input */
$map: (
  'one': (
     'key': 'value',
  ),

  'two': (
     'key': 'value',
  ),
)

/* Prettier 2.8.1 */
$map: (
  'one': (
     'key': 'value',
  ),
  'two': (
     'key': 'value',
  ),
)

/* Prettier 2.8.2 */
$map: (
  'one': (
     'key': 'value',
  ),

  'two': (
     'key': 'value',
  ),
)
```

##### Fix missing parentheses when an expression statement starts with `let[` ([#14000](prettier/prettier#14000), [#14044](prettier/prettier#14044) by [@fisker](https://github.com/fisker), [@thorn0](https://github.com/thorn0))

<!-- prettier-ignore -->

```jsx
// Input
(let[0] = 2);

// Prettier 2.8.1
let[0] = 2;

// Prettier 2.8.1 (second format)
SyntaxError: Unexpected token (1:5)
> 1 | let[0] = 2;
    |     ^
  2 |

// Prettier 2.8.2
(let)[0] = 2;
```

##### Fix semicolon duplicated at the end of LESS file ([#14007](prettier/prettier#14007) by [@mvorisek](https://github.com/mvorisek))

<!-- prettier-ignore -->

```less
// Input
@variable: {
  field: something;
};

// Prettier 2.8.1
@variable: {
  field: something;
}; ;

// Prettier 2.8.2
@variable: {
  field: something;
};
```

##### Fix no space after unary minus when followed by opening parenthesis in LESS ([#14008](prettier/prettier#14008) by [@mvorisek](https://github.com/mvorisek))

<!-- prettier-ignore -->

```less
// Input
.unary_minus_single {
  margin: -(@A);
}

.unary_minus_multi {
  margin: 0 -(@A);
}

.binary_minus {
  margin: 0 - (@A);
}

// Prettier 2.8.1
.unary_minus_single {
  margin: - (@A);
}

.unary_minus_multi {
  margin: 0 - (@A);
}

.binary_minus {
  margin: 0 - (@A);
}

// Prettier 2.8.2
.unary_minus_single {
  margin: -(@A);
}

.unary_minus_multi {
  margin: 0 -(@A);
}

.binary_minus {
  margin: 0 - (@A);
}
```

##### Do not change case of property name if inside a variable declaration in LESS ([#14034](prettier/prettier#14034) by [@mvorisek](https://github.com/mvorisek))

<!-- prettier-ignore -->

```less
// Input
@var: {
  preserveCase: 0;
};

// Prettier 2.8.1
@var: {
  preservecase: 0;
};

// Prettier 2.8.2
@var: {
  preserveCase: 0;
};
```

##### Fix formatting for auto-accessors with comments ([#14038](prettier/prettier#14038) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
class A {
  @dec()
  // comment
  accessor b;
}

// Prettier 2.8.1
class A {
  @dec()
  accessor // comment
  b;
}

// Prettier 2.8.1 (second format)
class A {
  @dec()
  accessor; // comment
  b;
}

// Prettier 2.8.2
class A {
  @dec()
  // comment
  accessor b;
}
```

##### Add parentheses for TSTypeQuery to improve readability ([#14042](prettier/prettier#14042) by [@onishi-kohei](https://github.com/onishi-kohei))

<!-- prettier-ignore -->

```tsx
// Input
a as (typeof node.children)[number]
a as (typeof node.children)[]
a as ((typeof node.children)[number])[]

// Prettier 2.8.1
a as typeof node.children[number];
a as typeof node.children[];
a as typeof node.children[number][];

// Prettier 2.8.2
a as (typeof node.children)[number];
a as (typeof node.children)[];
a as (typeof node.children)[number][];
```

##### Fix displacing of comments in default switch case ([#14047](prettier/prettier#14047) by [@thorn0](https://github.com/thorn0))

It was a regression in Prettier 2.6.0.

<!-- prettier-ignore -->

```jsx
// Input
switch (state) {
  default:
    result = state; // no change
    break;
}

// Prettier 2.8.1
switch (state) {
  default: // no change
    result = state;
    break;
}

// Prettier 2.8.2
switch (state) {
  default:
    result = state; // no change
    break;
}
```

##### Support type annotations on auto accessors via `babel-ts` ([#14049](prettier/prettier#14049) by [@sosukesuzuki](https://github.com/sosukesuzuki))

[The bug that `@babel/parser` cannot parse auto accessors with type annotations](babel/babel#15205) has been fixed. So we now support it via `babel-ts` parser.

<!-- prettier-ignore -->

```tsx
class Foo {
  accessor prop: number;
}
```

##### Fix formatting of empty type parameters ([#14073](prettier/prettier#14073) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
const foo: bar</* comment */> = () => baz;

// Prettier 2.8.1
Error: Comment "comment" was not printed. Please report this error!

// Prettier 2.8.2
const foo: bar</* comment */> = () => baz;
```

##### Add parentheses to head of `ExpressionStatement` instead of the whole statement ([#14077](prettier/prettier#14077) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
({}).toString.call(foo) === "[object Array]"
  ? foo.forEach(iterateArray)
  : iterateObject(foo);

// Prettier 2.8.1
({}.toString.call(foo) === "[object Array]"
  ? foo.forEach(iterateArray)
  : iterateObject(foo));

// Prettier 2.8.2
({}).toString.call(foo.forEach) === "[object Array]"
  ? foo.forEach(iterateArray)
  : iterateObject(foo);
```

##### Fix comments after directive ([#14081](prettier/prettier#14081) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
"use strict" /* comment */;

// Prettier 2.8.1 (with other js parsers except `babel`)
Error: Comment "comment" was not printed. Please report this error!

// Prettier 2.8.2
<Same as input>
```

##### Fix formatting for comments inside JSX attribute ([#14082](prettier/prettier#14082) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
function MyFunctionComponent() {
  <button label=/*old*/"new">button</button>
}

// Prettier 2.8.1
Error: Comment "old" was not printed. Please report this error!

// Prettier 2.8.2
function MyFunctionComponent() {
  <button label=/*old*/ "new">button</button>;
}
```

##### Quote numeric keys for json-stringify parser ([#14083](prettier/prettier#14083) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
{0: 'value'}

// Prettier 2.8.1
{
  0: "value"
}

// Prettier 2.8.2
{
  "0": "value"
}
```

##### Fix removing commas from function arguments in maps ([#14089](prettier/prettier#14089) by [@sosukesuzuki](https://github.com/sosukesuzuki))

<!-- prettier-ignore -->

```scss
/* Input */
$foo: map-fn(
  (
    "#{prop}": inner-fn($first, $second),
  )
);

/* Prettier 2.8.1 */
$foo: map-fn(("#{prop}": inner-fn($first $second)));

/* Prettier 2.8.2 */
$foo: map-fn(
  (
    "#{prop}": inner-fn($first, $second),
  )
);

```

##### Do not insert space in LESS property access ([#14103](prettier/prettier#14103) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```less
// Input
a {
  color: @Colors[@white];
}

// Prettier 2.8.1
a {
  color: @Colors[ @white];
}

// Prettier 2.8.2
<Same as input>
```


## [v2.8.1](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#281)

[diff](prettier/prettier@2.8.0...2.8.1)

##### Fix SCSS map in arguments ([#9184](prettier/prettier#9184) by [@agamkrbit](https://github.com/agamkrbit))

<!-- prettier-ignore -->

```scss
// Input
$display-breakpoints: map-deep-merge(
  (
    "print-only": "only print",
    "screen-only": "only screen",
    "xs-only": "only screen and (max-width: #{map-get($grid-breakpoints, "sm")-1})",
  ),
  $display-breakpoints
);

// Prettier 2.8.0
$display-breakpoints: map-deep-merge(
  (
    "print-only": "only print",
    "screen-only": "only screen",
    "xs-only": "only screen and (max-width: #{map-get($grid-breakpoints, " sm
      ")-1})",
  ),
  $display-breakpoints
);

// Prettier 2.8.1
$display-breakpoints: map-deep-merge(
  (
    "print-only": "only print",
    "screen-only": "only screen",
    "xs-only": "only screen and (max-width: #{map-get($grid-breakpoints, "sm")-1})",
  ),
  $display-breakpoints
);
```

##### Support auto accessors syntax ([#13919](prettier/prettier#13919) by [@sosukesuzuki](https://github.com/sosukesuzuki))

Support for [Auto Accessors Syntax](https://devblogs.microsoft.com/typescript/announcing-typescript-4-9/#auto-accessors-in-classes) landed in TypeScript 4.9.

(Doesn't work well with `babel-ts` parser)

<!-- prettier-ignore -->

```tsx
class Foo {
  accessor foo: number = 3;
}
```


## [v2.8.0](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#280)

[diff](prettier/prettier@2.7.1...2.8.0)

🔗 [Release Notes](https://prettier.io/blog/2022/11/23/2.8.0.html)


## [v2.7.1](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#271)

[diff](prettier/prettier@2.7.0...2.7.1)

##### Keep useful empty lines in description ([#13013](prettier/prettier#13013) by [@chimurai](https://github.com/chimurai))

<!-- prettier-ignore -->

```graphql
```
renovate bot added a commit to andrei-picus-tink/auto-renovate that referenced this pull request Aug 16, 2024
| datasource | package  | from  | to    |
| ---------- | -------- | ----- | ----- |
| npm        | prettier | 2.7.0 | 2.8.8 |


## [v2.8.8](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#288)

This version is a republished version of v2.8.7.
A bad version was accidentally published and [it can't be unpublished](npm/cli#1686), apologies for the churn.


## [v2.8.7](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#287)

[diff](prettier/prettier@2.8.6...2.8.7)

##### Allow multiple decorators on same getter/setter ([#14584](prettier/prettier#14584) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```ts
// Input
class A {
  @decorator()
  get foo () {}
  
  @decorator()
  set foo (value) {}
}

// Prettier 2.8.6
SyntaxError: Decorators cannot be applied to multiple get/set accessors of the same name. (5:3)
  3 |   get foo () {}
  4 |   
> 5 |   @decorator()
    |   ^^^^^^^^^^^^
  6 |   set foo (value) {}
  7 | }

// Prettier 2.8.7
class A {
  @decorator()
  get foo() {}

  @decorator()
  set foo(value) {}
}
```


## [v2.8.6](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#286)

[diff](prettier/prettier@2.8.5...2.8.6)

##### Allow decorators on private members and class expressions ([#14548](prettier/prettier#14548) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```ts
// Input
class A {
  @decorator()
  #privateMethod () {}
}

// Prettier 2.8.5
SyntaxError: Decorators are not valid here. (2:3)
  1 | class A {
> 2 |   @decorator()
    |   ^^^^^^^^^^^^
  3 |   #privateMethod () {}
  4 | }

// Prettier 2.8.6
class A {
  @decorator()
  #privateMethod() {}
}
```


## [v2.8.5](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#285)

[diff](prettier/prettier@2.8.4...2.8.5)

##### Support TypeScript 5.0 ([#14391](prettier/prettier#14391) by [@fisker](https://github.com/fisker), [#13819](prettier/prettier#13819) by [@fisker](https://github.com/fisker), [@sosukesuzuki](https://github.com/sosukesuzuki))

TypeScript 5.0 introduces two new syntactic features:

-   `const` modifiers for type parameters
-   `export type *` declarations

##### Add missing parentheses for decorator ([#14393](prettier/prettier#14393) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
class Person {
  @(myDecoratorArray[0])
  greet() {}
}

// Prettier 2.8.4
class Person {
  @myDecoratorArray[0]
  greet() {}
}

// Prettier 2.8.5
class Person {
  @(myDecoratorArray[0])
  greet() {}
}
```

##### Add parentheses for `TypeofTypeAnnotation` to improve readability ([#14458](prettier/prettier#14458) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```tsx
// Input
type A = (typeof node.children)[];

// Prettier 2.8.4
type A = typeof node.children[];

// Prettier 2.8.5
type A = (typeof node.children)[];
```

##### Support `max_line_length=off` when parsing `.editorconfig` ([#14516](prettier/prettier#14516) by [@josephfrazier](https://github.com/josephfrazier))

If an .editorconfig file is in your project and it sets `max_line_length=off` for the file you're formatting,
it will be interpreted as a `printWidth` of `Infinity` rather than being ignored
(which previously resulted in the default `printWidth` of 80 being applied, if not overridden by Prettier-specific configuration).

<!-- prettier-ignore -->

```html
<!-- Input -->
<div className='HelloWorld' title={`You are visitor number ${ num }`} onMouseOver={onMouseOver}/>

<!-- Prettier 2.8.4 -->
<div
  className="HelloWorld"
  title={`You are visitor number ${num}`}
  onMouseOver={onMouseOver}
/>;

<!-- Prettier 2.8.5 -->
<div className="HelloWorld" title={`You are visitor number ${num}`} onMouseOver={onMouseOver} />;
```


## [v2.8.4](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#284)

[diff](prettier/prettier@2.8.3...2.8.4)

##### Fix leading comments in mapped types with `readonly` ([#13427](prettier/prettier#13427) by [@thorn0](https://github.com/thorn0), [@sosukesuzuki](https://github.com/sosukesuzuki))

<!-- prettier-ignore -->

```tsx
// Input
type Type = {
  // comment
  readonly [key in Foo];
};

// Prettier 2.8.3
type Type = {
  readonly // comment
  [key in Foo];
};

// Prettier 2.8.4
type Type = {
  // comment
  readonly [key in Foo];
};
```

##### Group params in opening block statements ([#14067](prettier/prettier#14067) by [@jamescdavis](https://github.com/jamescdavis))

This is a follow-up to [#13930](prettier/prettier#13930) to establish wrapping consistency between opening block statements and else blocks by
grouping params in opening blocks. This causes params to break to a new line together and not be split across lines
unless the length of params exceeds the print width. This also updates the else block wrapping to behave exactly the
same as opening blocks.

<!-- prettier-ignore -->

```hbs
{{! Input }}
{{#block param param param param param param param param param param as |blockParam|}}
  Hello
{{else block param param param param param param param param param param as |blockParam|}}
  There
{{/block}}

{{! Prettier 2.8.3 }}
{{#block
  param
  param
  param
  param
  param
  param
  param
  param
  param
  param
  as |blockParam|
}}
  Hello
{{else block param
param
param
param
param
param
param
param
param
param}}
  There
{{/block}}

{{! Prettier 2.8.4 }}
{{#block
  param param param param param param param param param param
  as |blockParam|
}}
  Hello
{{else block
  param param param param param param param param param param
  as |blockParam|
}}
  There
{{/block}}
```

##### Ignore files in `.sl/` ([#14206](prettier/prettier#14206) by [@bolinfest](https://github.com/bolinfest))

In [Sapling SCM](https://sapling-scm.com/), `.sl/` is the folder where it stores its state, analogous to `.git/` in Git. It should be ignored in Prettier like the other SCM folders.

##### Recognize `@satisfies` in Closure-style type casts ([#14262](prettier/prettier#14262) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
const a = /** @Satisfies {Record<string, string>} */ ({hello: 1337});
const b = /** @type {Record<string, string>} */ ({hello: 1337});

// Prettier 2.8.3
const a = /** @Satisfies {Record<string, string>} */ { hello: 1337 };
const b = /** @type {Record<string, string>} */ ({ hello: 1337 });

// Prettier 2.8.4
const a = /** @Satisfies {Record<string, string>} */ ({hello: 1337});
const b = /** @type {Record<string, string>} */ ({hello: 1337});
```

##### Fix parens in inferred function return types with `extends` ([#14279](prettier/prettier#14279) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```ts
// Input
type Foo<T> = T extends ((a) => a is infer R extends string) ? R : never;

// Prettier 2.8.3 (First format)
type Foo<T> = T extends (a) => a is infer R extends string ? R : never;

// Prettier 2.8.3 (Second format)
SyntaxError: '?' expected. 

// Prettier 2.8.4
type Foo<T> = T extends ((a) => a is infer R extends string) ? R : never;
```


## [v2.8.3](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#283)

[diff](prettier/prettier@2.8.2...2.8.3)

##### Allow self-closing tags on custom elements ([#14170](prettier/prettier#14170) by [@fisker](https://github.com/fisker))

See [Angular v15.1.0 release note](https://github.com/angular/angular/releases/tag/15.1.0) for details.

<!-- prettier-ignore -->

```html
// Input
<app-test/>

// Prettier 2.8.2
SyntaxError: Only void and foreign elements can be self closed "app-test" (1:1)
> 1 | <app-test/>
    | ^^^^^^^^^
  2 |

// Prettier 2.8.3
<app-test />
```


## [v2.8.2](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#282)

[diff](prettier/prettier@2.8.1...2.8.2)

##### Don't lowercase link references ([#13155](prettier/prettier#13155) by [@DerekNonGeneric](https://github.com/DerekNonGeneric) & [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```markdown
<!-- Input -->
We now don't strictly follow the release notes format suggested by [Keep a Changelog].

[Keep a Changelog]: https://example.com/

<!-- Prettier 2.8.1 -->
We now don't strictly follow the release notes format suggested by [Keep a Changelog].

[keep a changelog]: https://example.com/
<!--
^^^^^^^^^^^^^^^^^^ lowercased
-->

<!-- Prettier 2.8.2 -->
<Same as input>
```

##### Preserve self-closing tags ([#13691](prettier/prettier#13691) by [@dcyriller](https://github.com/dcyriller))

<!-- prettier-ignore -->

```hbs
{{! Input }}
<div />
<div></div>
<custom-component />
<custom-component></custom-component>
<i />
<i></i>
<Component />
<Component></Component>

{{! Prettier 2.8.1 }}
<div></div>
<div></div>
<custom-component></custom-component>
<custom-component></custom-component>
<i></i>
<i></i>
<Component />
<Component />

{{! Prettier 2.8.2 }}
<div />
<div></div>
<custom-component />
<custom-component></custom-component>
<i />
<i></i>
<Component />
<Component />
```

##### Allow custom "else if"-like blocks with block params ([#13930](prettier/prettier#13930) by [@jamescdavis](https://github.com/jamescdavis))

[#13507](prettier/prettier#13507) added support for custom block keywords used with `else`, but failed to allow block params. This updates printer-glimmer to allow block params with custom "else if"-like blocks.

<!-- prettier-ignore -->

```hbs
{{! Input }}
{{#when isAtWork as |work|}}
  Ship that
  {{work}}!
{{else when isReading as |book|}}
  You can finish
  {{book}}
  eventually...
{{else}}
  Go to bed!
{{/when}}

{{! Prettier 2.8.1 }}
{{#when isAtWork as |work|}}
  Ship that
  {{work}}!
{{else when isReading}}
  You can finish
  {{book}}
  eventually...
{{else}}
  Go to bed!
{{/when}}

{{! Prettier 2.8.2 }}
{{#when isAtWork as |work|}}
  Ship that
  {{work}}!
{{else when isReading as |book|}}
  You can finish
  {{book}}
  eventually...
{{else}}
  Go to bed!
{{/when}}
```

##### Preserve empty lines between nested SCSS maps ([#13931](prettier/prettier#13931) by [@jneander](https://github.com/jneander))

<!-- prettier-ignore -->

```scss
/* Input */
$map: (
  'one': (
     'key': 'value',
  ),

  'two': (
     'key': 'value',
  ),
)

/* Prettier 2.8.1 */
$map: (
  'one': (
     'key': 'value',
  ),
  'two': (
     'key': 'value',
  ),
)

/* Prettier 2.8.2 */
$map: (
  'one': (
     'key': 'value',
  ),

  'two': (
     'key': 'value',
  ),
)
```

##### Fix missing parentheses when an expression statement starts with `let[` ([#14000](prettier/prettier#14000), [#14044](prettier/prettier#14044) by [@fisker](https://github.com/fisker), [@thorn0](https://github.com/thorn0))

<!-- prettier-ignore -->

```jsx
// Input
(let[0] = 2);

// Prettier 2.8.1
let[0] = 2;

// Prettier 2.8.1 (second format)
SyntaxError: Unexpected token (1:5)
> 1 | let[0] = 2;
    |     ^
  2 |

// Prettier 2.8.2
(let)[0] = 2;
```

##### Fix semicolon duplicated at the end of LESS file ([#14007](prettier/prettier#14007) by [@mvorisek](https://github.com/mvorisek))

<!-- prettier-ignore -->

```less
// Input
@variable: {
  field: something;
};

// Prettier 2.8.1
@variable: {
  field: something;
}; ;

// Prettier 2.8.2
@variable: {
  field: something;
};
```

##### Fix no space after unary minus when followed by opening parenthesis in LESS ([#14008](prettier/prettier#14008) by [@mvorisek](https://github.com/mvorisek))

<!-- prettier-ignore -->

```less
// Input
.unary_minus_single {
  margin: -(@A);
}

.unary_minus_multi {
  margin: 0 -(@A);
}

.binary_minus {
  margin: 0 - (@A);
}

// Prettier 2.8.1
.unary_minus_single {
  margin: - (@A);
}

.unary_minus_multi {
  margin: 0 - (@A);
}

.binary_minus {
  margin: 0 - (@A);
}

// Prettier 2.8.2
.unary_minus_single {
  margin: -(@A);
}

.unary_minus_multi {
  margin: 0 -(@A);
}

.binary_minus {
  margin: 0 - (@A);
}
```

##### Do not change case of property name if inside a variable declaration in LESS ([#14034](prettier/prettier#14034) by [@mvorisek](https://github.com/mvorisek))

<!-- prettier-ignore -->

```less
// Input
@var: {
  preserveCase: 0;
};

// Prettier 2.8.1
@var: {
  preservecase: 0;
};

// Prettier 2.8.2
@var: {
  preserveCase: 0;
};
```

##### Fix formatting for auto-accessors with comments ([#14038](prettier/prettier#14038) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
class A {
  @dec()
  // comment
  accessor b;
}

// Prettier 2.8.1
class A {
  @dec()
  accessor // comment
  b;
}

// Prettier 2.8.1 (second format)
class A {
  @dec()
  accessor; // comment
  b;
}

// Prettier 2.8.2
class A {
  @dec()
  // comment
  accessor b;
}
```

##### Add parentheses for TSTypeQuery to improve readability ([#14042](prettier/prettier#14042) by [@onishi-kohei](https://github.com/onishi-kohei))

<!-- prettier-ignore -->

```tsx
// Input
a as (typeof node.children)[number]
a as (typeof node.children)[]
a as ((typeof node.children)[number])[]

// Prettier 2.8.1
a as typeof node.children[number];
a as typeof node.children[];
a as typeof node.children[number][];

// Prettier 2.8.2
a as (typeof node.children)[number];
a as (typeof node.children)[];
a as (typeof node.children)[number][];
```

##### Fix displacing of comments in default switch case ([#14047](prettier/prettier#14047) by [@thorn0](https://github.com/thorn0))

It was a regression in Prettier 2.6.0.

<!-- prettier-ignore -->

```jsx
// Input
switch (state) {
  default:
    result = state; // no change
    break;
}

// Prettier 2.8.1
switch (state) {
  default: // no change
    result = state;
    break;
}

// Prettier 2.8.2
switch (state) {
  default:
    result = state; // no change
    break;
}
```

##### Support type annotations on auto accessors via `babel-ts` ([#14049](prettier/prettier#14049) by [@sosukesuzuki](https://github.com/sosukesuzuki))

[The bug that `@babel/parser` cannot parse auto accessors with type annotations](babel/babel#15205) has been fixed. So we now support it via `babel-ts` parser.

<!-- prettier-ignore -->

```tsx
class Foo {
  accessor prop: number;
}
```

##### Fix formatting of empty type parameters ([#14073](prettier/prettier#14073) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
const foo: bar</* comment */> = () => baz;

// Prettier 2.8.1
Error: Comment "comment" was not printed. Please report this error!

// Prettier 2.8.2
const foo: bar</* comment */> = () => baz;
```

##### Add parentheses to head of `ExpressionStatement` instead of the whole statement ([#14077](prettier/prettier#14077) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
({}).toString.call(foo) === "[object Array]"
  ? foo.forEach(iterateArray)
  : iterateObject(foo);

// Prettier 2.8.1
({}.toString.call(foo) === "[object Array]"
  ? foo.forEach(iterateArray)
  : iterateObject(foo));

// Prettier 2.8.2
({}).toString.call(foo.forEach) === "[object Array]"
  ? foo.forEach(iterateArray)
  : iterateObject(foo);
```

##### Fix comments after directive ([#14081](prettier/prettier#14081) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
"use strict" /* comment */;

// Prettier 2.8.1 (with other js parsers except `babel`)
Error: Comment "comment" was not printed. Please report this error!

// Prettier 2.8.2
<Same as input>
```

##### Fix formatting for comments inside JSX attribute ([#14082](prettier/prettier#14082) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
function MyFunctionComponent() {
  <button label=/*old*/"new">button</button>
}

// Prettier 2.8.1
Error: Comment "old" was not printed. Please report this error!

// Prettier 2.8.2
function MyFunctionComponent() {
  <button label=/*old*/ "new">button</button>;
}
```

##### Quote numeric keys for json-stringify parser ([#14083](prettier/prettier#14083) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
{0: 'value'}

// Prettier 2.8.1
{
  0: "value"
}

// Prettier 2.8.2
{
  "0": "value"
}
```

##### Fix removing commas from function arguments in maps ([#14089](prettier/prettier#14089) by [@sosukesuzuki](https://github.com/sosukesuzuki))

<!-- prettier-ignore -->

```scss
/* Input */
$foo: map-fn(
  (
    "#{prop}": inner-fn($first, $second),
  )
);

/* Prettier 2.8.1 */
$foo: map-fn(("#{prop}": inner-fn($first $second)));

/* Prettier 2.8.2 */
$foo: map-fn(
  (
    "#{prop}": inner-fn($first, $second),
  )
);

```

##### Do not insert space in LESS property access ([#14103](prettier/prettier#14103) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```less
// Input
a {
  color: @Colors[@white];
}

// Prettier 2.8.1
a {
  color: @Colors[ @white];
}

// Prettier 2.8.2
<Same as input>
```


## [v2.8.1](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#281)

[diff](prettier/prettier@2.8.0...2.8.1)

##### Fix SCSS map in arguments ([#9184](prettier/prettier#9184) by [@agamkrbit](https://github.com/agamkrbit))

<!-- prettier-ignore -->

```scss
// Input
$display-breakpoints: map-deep-merge(
  (
    "print-only": "only print",
    "screen-only": "only screen",
    "xs-only": "only screen and (max-width: #{map-get($grid-breakpoints, "sm")-1})",
  ),
  $display-breakpoints
);

// Prettier 2.8.0
$display-breakpoints: map-deep-merge(
  (
    "print-only": "only print",
    "screen-only": "only screen",
    "xs-only": "only screen and (max-width: #{map-get($grid-breakpoints, " sm
      ")-1})",
  ),
  $display-breakpoints
);

// Prettier 2.8.1
$display-breakpoints: map-deep-merge(
  (
    "print-only": "only print",
    "screen-only": "only screen",
    "xs-only": "only screen and (max-width: #{map-get($grid-breakpoints, "sm")-1})",
  ),
  $display-breakpoints
);
```

##### Support auto accessors syntax ([#13919](prettier/prettier#13919) by [@sosukesuzuki](https://github.com/sosukesuzuki))

Support for [Auto Accessors Syntax](https://devblogs.microsoft.com/typescript/announcing-typescript-4-9/#auto-accessors-in-classes) landed in TypeScript 4.9.

(Doesn't work well with `babel-ts` parser)

<!-- prettier-ignore -->

```tsx
class Foo {
  accessor foo: number = 3;
}
```


## [v2.8.0](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#280)

[diff](prettier/prettier@2.7.1...2.8.0)

🔗 [Release Notes](https://prettier.io/blog/2022/11/23/2.8.0.html)


## [v2.7.1](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#271)

[diff](prettier/prettier@2.7.0...2.7.1)

##### Keep useful empty lines in description ([#13013](prettier/prettier#13013) by [@chimurai](https://github.com/chimurai))

<!-- prettier-ignore -->

```graphql
```
renovate bot added a commit to andrei-picus-tink/auto-renovate that referenced this pull request Aug 17, 2024
| datasource | package  | from  | to    |
| ---------- | -------- | ----- | ----- |
| npm        | prettier | 2.7.0 | 2.8.8 |


## [v2.8.8](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#288)

This version is a republished version of v2.8.7.
A bad version was accidentally published and [it can't be unpublished](npm/cli#1686), apologies for the churn.


## [v2.8.7](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#287)

[diff](prettier/prettier@2.8.6...2.8.7)

##### Allow multiple decorators on same getter/setter ([#14584](prettier/prettier#14584) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```ts
// Input
class A {
  @decorator()
  get foo () {}
  
  @decorator()
  set foo (value) {}
}

// Prettier 2.8.6
SyntaxError: Decorators cannot be applied to multiple get/set accessors of the same name. (5:3)
  3 |   get foo () {}
  4 |   
> 5 |   @decorator()
    |   ^^^^^^^^^^^^
  6 |   set foo (value) {}
  7 | }

// Prettier 2.8.7
class A {
  @decorator()
  get foo() {}

  @decorator()
  set foo(value) {}
}
```


## [v2.8.6](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#286)

[diff](prettier/prettier@2.8.5...2.8.6)

##### Allow decorators on private members and class expressions ([#14548](prettier/prettier#14548) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```ts
// Input
class A {
  @decorator()
  #privateMethod () {}
}

// Prettier 2.8.5
SyntaxError: Decorators are not valid here. (2:3)
  1 | class A {
> 2 |   @decorator()
    |   ^^^^^^^^^^^^
  3 |   #privateMethod () {}
  4 | }

// Prettier 2.8.6
class A {
  @decorator()
  #privateMethod() {}
}
```


## [v2.8.5](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#285)

[diff](prettier/prettier@2.8.4...2.8.5)

##### Support TypeScript 5.0 ([#14391](prettier/prettier#14391) by [@fisker](https://github.com/fisker), [#13819](prettier/prettier#13819) by [@fisker](https://github.com/fisker), [@sosukesuzuki](https://github.com/sosukesuzuki))

TypeScript 5.0 introduces two new syntactic features:

-   `const` modifiers for type parameters
-   `export type *` declarations

##### Add missing parentheses for decorator ([#14393](prettier/prettier#14393) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
class Person {
  @(myDecoratorArray[0])
  greet() {}
}

// Prettier 2.8.4
class Person {
  @myDecoratorArray[0]
  greet() {}
}

// Prettier 2.8.5
class Person {
  @(myDecoratorArray[0])
  greet() {}
}
```

##### Add parentheses for `TypeofTypeAnnotation` to improve readability ([#14458](prettier/prettier#14458) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```tsx
// Input
type A = (typeof node.children)[];

// Prettier 2.8.4
type A = typeof node.children[];

// Prettier 2.8.5
type A = (typeof node.children)[];
```

##### Support `max_line_length=off` when parsing `.editorconfig` ([#14516](prettier/prettier#14516) by [@josephfrazier](https://github.com/josephfrazier))

If an .editorconfig file is in your project and it sets `max_line_length=off` for the file you're formatting,
it will be interpreted as a `printWidth` of `Infinity` rather than being ignored
(which previously resulted in the default `printWidth` of 80 being applied, if not overridden by Prettier-specific configuration).

<!-- prettier-ignore -->

```html
<!-- Input -->
<div className='HelloWorld' title={`You are visitor number ${ num }`} onMouseOver={onMouseOver}/>

<!-- Prettier 2.8.4 -->
<div
  className="HelloWorld"
  title={`You are visitor number ${num}`}
  onMouseOver={onMouseOver}
/>;

<!-- Prettier 2.8.5 -->
<div className="HelloWorld" title={`You are visitor number ${num}`} onMouseOver={onMouseOver} />;
```


## [v2.8.4](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#284)

[diff](prettier/prettier@2.8.3...2.8.4)

##### Fix leading comments in mapped types with `readonly` ([#13427](prettier/prettier#13427) by [@thorn0](https://github.com/thorn0), [@sosukesuzuki](https://github.com/sosukesuzuki))

<!-- prettier-ignore -->

```tsx
// Input
type Type = {
  // comment
  readonly [key in Foo];
};

// Prettier 2.8.3
type Type = {
  readonly // comment
  [key in Foo];
};

// Prettier 2.8.4
type Type = {
  // comment
  readonly [key in Foo];
};
```

##### Group params in opening block statements ([#14067](prettier/prettier#14067) by [@jamescdavis](https://github.com/jamescdavis))

This is a follow-up to [#13930](prettier/prettier#13930) to establish wrapping consistency between opening block statements and else blocks by
grouping params in opening blocks. This causes params to break to a new line together and not be split across lines
unless the length of params exceeds the print width. This also updates the else block wrapping to behave exactly the
same as opening blocks.

<!-- prettier-ignore -->

```hbs
{{! Input }}
{{#block param param param param param param param param param param as |blockParam|}}
  Hello
{{else block param param param param param param param param param param as |blockParam|}}
  There
{{/block}}

{{! Prettier 2.8.3 }}
{{#block
  param
  param
  param
  param
  param
  param
  param
  param
  param
  param
  as |blockParam|
}}
  Hello
{{else block param
param
param
param
param
param
param
param
param
param}}
  There
{{/block}}

{{! Prettier 2.8.4 }}
{{#block
  param param param param param param param param param param
  as |blockParam|
}}
  Hello
{{else block
  param param param param param param param param param param
  as |blockParam|
}}
  There
{{/block}}
```

##### Ignore files in `.sl/` ([#14206](prettier/prettier#14206) by [@bolinfest](https://github.com/bolinfest))

In [Sapling SCM](https://sapling-scm.com/), `.sl/` is the folder where it stores its state, analogous to `.git/` in Git. It should be ignored in Prettier like the other SCM folders.

##### Recognize `@satisfies` in Closure-style type casts ([#14262](prettier/prettier#14262) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
const a = /** @Satisfies {Record<string, string>} */ ({hello: 1337});
const b = /** @type {Record<string, string>} */ ({hello: 1337});

// Prettier 2.8.3
const a = /** @Satisfies {Record<string, string>} */ { hello: 1337 };
const b = /** @type {Record<string, string>} */ ({ hello: 1337 });

// Prettier 2.8.4
const a = /** @Satisfies {Record<string, string>} */ ({hello: 1337});
const b = /** @type {Record<string, string>} */ ({hello: 1337});
```

##### Fix parens in inferred function return types with `extends` ([#14279](prettier/prettier#14279) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```ts
// Input
type Foo<T> = T extends ((a) => a is infer R extends string) ? R : never;

// Prettier 2.8.3 (First format)
type Foo<T> = T extends (a) => a is infer R extends string ? R : never;

// Prettier 2.8.3 (Second format)
SyntaxError: '?' expected. 

// Prettier 2.8.4
type Foo<T> = T extends ((a) => a is infer R extends string) ? R : never;
```


## [v2.8.3](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#283)

[diff](prettier/prettier@2.8.2...2.8.3)

##### Allow self-closing tags on custom elements ([#14170](prettier/prettier#14170) by [@fisker](https://github.com/fisker))

See [Angular v15.1.0 release note](https://github.com/angular/angular/releases/tag/15.1.0) for details.

<!-- prettier-ignore -->

```html
// Input
<app-test/>

// Prettier 2.8.2
SyntaxError: Only void and foreign elements can be self closed "app-test" (1:1)
> 1 | <app-test/>
    | ^^^^^^^^^
  2 |

// Prettier 2.8.3
<app-test />
```


## [v2.8.2](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#282)

[diff](prettier/prettier@2.8.1...2.8.2)

##### Don't lowercase link references ([#13155](prettier/prettier#13155) by [@DerekNonGeneric](https://github.com/DerekNonGeneric) & [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```markdown
<!-- Input -->
We now don't strictly follow the release notes format suggested by [Keep a Changelog].

[Keep a Changelog]: https://example.com/

<!-- Prettier 2.8.1 -->
We now don't strictly follow the release notes format suggested by [Keep a Changelog].

[keep a changelog]: https://example.com/
<!--
^^^^^^^^^^^^^^^^^^ lowercased
-->

<!-- Prettier 2.8.2 -->
<Same as input>
```

##### Preserve self-closing tags ([#13691](prettier/prettier#13691) by [@dcyriller](https://github.com/dcyriller))

<!-- prettier-ignore -->

```hbs
{{! Input }}
<div />
<div></div>
<custom-component />
<custom-component></custom-component>
<i />
<i></i>
<Component />
<Component></Component>

{{! Prettier 2.8.1 }}
<div></div>
<div></div>
<custom-component></custom-component>
<custom-component></custom-component>
<i></i>
<i></i>
<Component />
<Component />

{{! Prettier 2.8.2 }}
<div />
<div></div>
<custom-component />
<custom-component></custom-component>
<i />
<i></i>
<Component />
<Component />
```

##### Allow custom "else if"-like blocks with block params ([#13930](prettier/prettier#13930) by [@jamescdavis](https://github.com/jamescdavis))

[#13507](prettier/prettier#13507) added support for custom block keywords used with `else`, but failed to allow block params. This updates printer-glimmer to allow block params with custom "else if"-like blocks.

<!-- prettier-ignore -->

```hbs
{{! Input }}
{{#when isAtWork as |work|}}
  Ship that
  {{work}}!
{{else when isReading as |book|}}
  You can finish
  {{book}}
  eventually...
{{else}}
  Go to bed!
{{/when}}

{{! Prettier 2.8.1 }}
{{#when isAtWork as |work|}}
  Ship that
  {{work}}!
{{else when isReading}}
  You can finish
  {{book}}
  eventually...
{{else}}
  Go to bed!
{{/when}}

{{! Prettier 2.8.2 }}
{{#when isAtWork as |work|}}
  Ship that
  {{work}}!
{{else when isReading as |book|}}
  You can finish
  {{book}}
  eventually...
{{else}}
  Go to bed!
{{/when}}
```

##### Preserve empty lines between nested SCSS maps ([#13931](prettier/prettier#13931) by [@jneander](https://github.com/jneander))

<!-- prettier-ignore -->

```scss
/* Input */
$map: (
  'one': (
     'key': 'value',
  ),

  'two': (
     'key': 'value',
  ),
)

/* Prettier 2.8.1 */
$map: (
  'one': (
     'key': 'value',
  ),
  'two': (
     'key': 'value',
  ),
)

/* Prettier 2.8.2 */
$map: (
  'one': (
     'key': 'value',
  ),

  'two': (
     'key': 'value',
  ),
)
```

##### Fix missing parentheses when an expression statement starts with `let[` ([#14000](prettier/prettier#14000), [#14044](prettier/prettier#14044) by [@fisker](https://github.com/fisker), [@thorn0](https://github.com/thorn0))

<!-- prettier-ignore -->

```jsx
// Input
(let[0] = 2);

// Prettier 2.8.1
let[0] = 2;

// Prettier 2.8.1 (second format)
SyntaxError: Unexpected token (1:5)
> 1 | let[0] = 2;
    |     ^
  2 |

// Prettier 2.8.2
(let)[0] = 2;
```

##### Fix semicolon duplicated at the end of LESS file ([#14007](prettier/prettier#14007) by [@mvorisek](https://github.com/mvorisek))

<!-- prettier-ignore -->

```less
// Input
@variable: {
  field: something;
};

// Prettier 2.8.1
@variable: {
  field: something;
}; ;

// Prettier 2.8.2
@variable: {
  field: something;
};
```

##### Fix no space after unary minus when followed by opening parenthesis in LESS ([#14008](prettier/prettier#14008) by [@mvorisek](https://github.com/mvorisek))

<!-- prettier-ignore -->

```less
// Input
.unary_minus_single {
  margin: -(@A);
}

.unary_minus_multi {
  margin: 0 -(@A);
}

.binary_minus {
  margin: 0 - (@A);
}

// Prettier 2.8.1
.unary_minus_single {
  margin: - (@A);
}

.unary_minus_multi {
  margin: 0 - (@A);
}

.binary_minus {
  margin: 0 - (@A);
}

// Prettier 2.8.2
.unary_minus_single {
  margin: -(@A);
}

.unary_minus_multi {
  margin: 0 -(@A);
}

.binary_minus {
  margin: 0 - (@A);
}
```

##### Do not change case of property name if inside a variable declaration in LESS ([#14034](prettier/prettier#14034) by [@mvorisek](https://github.com/mvorisek))

<!-- prettier-ignore -->

```less
// Input
@var: {
  preserveCase: 0;
};

// Prettier 2.8.1
@var: {
  preservecase: 0;
};

// Prettier 2.8.2
@var: {
  preserveCase: 0;
};
```

##### Fix formatting for auto-accessors with comments ([#14038](prettier/prettier#14038) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
class A {
  @dec()
  // comment
  accessor b;
}

// Prettier 2.8.1
class A {
  @dec()
  accessor // comment
  b;
}

// Prettier 2.8.1 (second format)
class A {
  @dec()
  accessor; // comment
  b;
}

// Prettier 2.8.2
class A {
  @dec()
  // comment
  accessor b;
}
```

##### Add parentheses for TSTypeQuery to improve readability ([#14042](prettier/prettier#14042) by [@onishi-kohei](https://github.com/onishi-kohei))

<!-- prettier-ignore -->

```tsx
// Input
a as (typeof node.children)[number]
a as (typeof node.children)[]
a as ((typeof node.children)[number])[]

// Prettier 2.8.1
a as typeof node.children[number];
a as typeof node.children[];
a as typeof node.children[number][];

// Prettier 2.8.2
a as (typeof node.children)[number];
a as (typeof node.children)[];
a as (typeof node.children)[number][];
```

##### Fix displacing of comments in default switch case ([#14047](prettier/prettier#14047) by [@thorn0](https://github.com/thorn0))

It was a regression in Prettier 2.6.0.

<!-- prettier-ignore -->

```jsx
// Input
switch (state) {
  default:
    result = state; // no change
    break;
}

// Prettier 2.8.1
switch (state) {
  default: // no change
    result = state;
    break;
}

// Prettier 2.8.2
switch (state) {
  default:
    result = state; // no change
    break;
}
```

##### Support type annotations on auto accessors via `babel-ts` ([#14049](prettier/prettier#14049) by [@sosukesuzuki](https://github.com/sosukesuzuki))

[The bug that `@babel/parser` cannot parse auto accessors with type annotations](babel/babel#15205) has been fixed. So we now support it via `babel-ts` parser.

<!-- prettier-ignore -->

```tsx
class Foo {
  accessor prop: number;
}
```

##### Fix formatting of empty type parameters ([#14073](prettier/prettier#14073) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
const foo: bar</* comment */> = () => baz;

// Prettier 2.8.1
Error: Comment "comment" was not printed. Please report this error!

// Prettier 2.8.2
const foo: bar</* comment */> = () => baz;
```

##### Add parentheses to head of `ExpressionStatement` instead of the whole statement ([#14077](prettier/prettier#14077) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
({}).toString.call(foo) === "[object Array]"
  ? foo.forEach(iterateArray)
  : iterateObject(foo);

// Prettier 2.8.1
({}.toString.call(foo) === "[object Array]"
  ? foo.forEach(iterateArray)
  : iterateObject(foo));

// Prettier 2.8.2
({}).toString.call(foo.forEach) === "[object Array]"
  ? foo.forEach(iterateArray)
  : iterateObject(foo);
```

##### Fix comments after directive ([#14081](prettier/prettier#14081) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
"use strict" /* comment */;

// Prettier 2.8.1 (with other js parsers except `babel`)
Error: Comment "comment" was not printed. Please report this error!

// Prettier 2.8.2
<Same as input>
```

##### Fix formatting for comments inside JSX attribute ([#14082](prettier/prettier#14082) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
function MyFunctionComponent() {
  <button label=/*old*/"new">button</button>
}

// Prettier 2.8.1
Error: Comment "old" was not printed. Please report this error!

// Prettier 2.8.2
function MyFunctionComponent() {
  <button label=/*old*/ "new">button</button>;
}
```

##### Quote numeric keys for json-stringify parser ([#14083](prettier/prettier#14083) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
{0: 'value'}

// Prettier 2.8.1
{
  0: "value"
}

// Prettier 2.8.2
{
  "0": "value"
}
```

##### Fix removing commas from function arguments in maps ([#14089](prettier/prettier#14089) by [@sosukesuzuki](https://github.com/sosukesuzuki))

<!-- prettier-ignore -->

```scss
/* Input */
$foo: map-fn(
  (
    "#{prop}": inner-fn($first, $second),
  )
);

/* Prettier 2.8.1 */
$foo: map-fn(("#{prop}": inner-fn($first $second)));

/* Prettier 2.8.2 */
$foo: map-fn(
  (
    "#{prop}": inner-fn($first, $second),
  )
);

```

##### Do not insert space in LESS property access ([#14103](prettier/prettier#14103) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```less
// Input
a {
  color: @Colors[@white];
}

// Prettier 2.8.1
a {
  color: @Colors[ @white];
}

// Prettier 2.8.2
<Same as input>
```


## [v2.8.1](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#281)

[diff](prettier/prettier@2.8.0...2.8.1)

##### Fix SCSS map in arguments ([#9184](prettier/prettier#9184) by [@agamkrbit](https://github.com/agamkrbit))

<!-- prettier-ignore -->

```scss
// Input
$display-breakpoints: map-deep-merge(
  (
    "print-only": "only print",
    "screen-only": "only screen",
    "xs-only": "only screen and (max-width: #{map-get($grid-breakpoints, "sm")-1})",
  ),
  $display-breakpoints
);

// Prettier 2.8.0
$display-breakpoints: map-deep-merge(
  (
    "print-only": "only print",
    "screen-only": "only screen",
    "xs-only": "only screen and (max-width: #{map-get($grid-breakpoints, " sm
      ")-1})",
  ),
  $display-breakpoints
);

// Prettier 2.8.1
$display-breakpoints: map-deep-merge(
  (
    "print-only": "only print",
    "screen-only": "only screen",
    "xs-only": "only screen and (max-width: #{map-get($grid-breakpoints, "sm")-1})",
  ),
  $display-breakpoints
);
```

##### Support auto accessors syntax ([#13919](prettier/prettier#13919) by [@sosukesuzuki](https://github.com/sosukesuzuki))

Support for [Auto Accessors Syntax](https://devblogs.microsoft.com/typescript/announcing-typescript-4-9/#auto-accessors-in-classes) landed in TypeScript 4.9.

(Doesn't work well with `babel-ts` parser)

<!-- prettier-ignore -->

```tsx
class Foo {
  accessor foo: number = 3;
}
```


## [v2.8.0](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#280)

[diff](prettier/prettier@2.7.1...2.8.0)

🔗 [Release Notes](https://prettier.io/blog/2022/11/23/2.8.0.html)


## [v2.7.1](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#271)

[diff](prettier/prettier@2.7.0...2.7.1)

##### Keep useful empty lines in description ([#13013](prettier/prettier#13013) by [@chimurai](https://github.com/chimurai))

<!-- prettier-ignore -->

```graphql
```
renovate bot added a commit to andrei-picus-tink/auto-renovate that referenced this pull request Aug 18, 2024
| datasource | package  | from  | to    |
| ---------- | -------- | ----- | ----- |
| npm        | prettier | 2.7.0 | 2.8.8 |


## [v2.8.8](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#288)

This version is a republished version of v2.8.7.
A bad version was accidentally published and [it can't be unpublished](npm/cli#1686), apologies for the churn.


## [v2.8.7](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#287)

[diff](prettier/prettier@2.8.6...2.8.7)

##### Allow multiple decorators on same getter/setter ([#14584](prettier/prettier#14584) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```ts
// Input
class A {
  @decorator()
  get foo () {}
  
  @decorator()
  set foo (value) {}
}

// Prettier 2.8.6
SyntaxError: Decorators cannot be applied to multiple get/set accessors of the same name. (5:3)
  3 |   get foo () {}
  4 |   
> 5 |   @decorator()
    |   ^^^^^^^^^^^^
  6 |   set foo (value) {}
  7 | }

// Prettier 2.8.7
class A {
  @decorator()
  get foo() {}

  @decorator()
  set foo(value) {}
}
```


## [v2.8.6](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#286)

[diff](prettier/prettier@2.8.5...2.8.6)

##### Allow decorators on private members and class expressions ([#14548](prettier/prettier#14548) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```ts
// Input
class A {
  @decorator()
  #privateMethod () {}
}

// Prettier 2.8.5
SyntaxError: Decorators are not valid here. (2:3)
  1 | class A {
> 2 |   @decorator()
    |   ^^^^^^^^^^^^
  3 |   #privateMethod () {}
  4 | }

// Prettier 2.8.6
class A {
  @decorator()
  #privateMethod() {}
}
```


## [v2.8.5](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#285)

[diff](prettier/prettier@2.8.4...2.8.5)

##### Support TypeScript 5.0 ([#14391](prettier/prettier#14391) by [@fisker](https://github.com/fisker), [#13819](prettier/prettier#13819) by [@fisker](https://github.com/fisker), [@sosukesuzuki](https://github.com/sosukesuzuki))

TypeScript 5.0 introduces two new syntactic features:

-   `const` modifiers for type parameters
-   `export type *` declarations

##### Add missing parentheses for decorator ([#14393](prettier/prettier#14393) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
class Person {
  @(myDecoratorArray[0])
  greet() {}
}

// Prettier 2.8.4
class Person {
  @myDecoratorArray[0]
  greet() {}
}

// Prettier 2.8.5
class Person {
  @(myDecoratorArray[0])
  greet() {}
}
```

##### Add parentheses for `TypeofTypeAnnotation` to improve readability ([#14458](prettier/prettier#14458) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```tsx
// Input
type A = (typeof node.children)[];

// Prettier 2.8.4
type A = typeof node.children[];

// Prettier 2.8.5
type A = (typeof node.children)[];
```

##### Support `max_line_length=off` when parsing `.editorconfig` ([#14516](prettier/prettier#14516) by [@josephfrazier](https://github.com/josephfrazier))

If an .editorconfig file is in your project and it sets `max_line_length=off` for the file you're formatting,
it will be interpreted as a `printWidth` of `Infinity` rather than being ignored
(which previously resulted in the default `printWidth` of 80 being applied, if not overridden by Prettier-specific configuration).

<!-- prettier-ignore -->

```html
<!-- Input -->
<div className='HelloWorld' title={`You are visitor number ${ num }`} onMouseOver={onMouseOver}/>

<!-- Prettier 2.8.4 -->
<div
  className="HelloWorld"
  title={`You are visitor number ${num}`}
  onMouseOver={onMouseOver}
/>;

<!-- Prettier 2.8.5 -->
<div className="HelloWorld" title={`You are visitor number ${num}`} onMouseOver={onMouseOver} />;
```


## [v2.8.4](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#284)

[diff](prettier/prettier@2.8.3...2.8.4)

##### Fix leading comments in mapped types with `readonly` ([#13427](prettier/prettier#13427) by [@thorn0](https://github.com/thorn0), [@sosukesuzuki](https://github.com/sosukesuzuki))

<!-- prettier-ignore -->

```tsx
// Input
type Type = {
  // comment
  readonly [key in Foo];
};

// Prettier 2.8.3
type Type = {
  readonly // comment
  [key in Foo];
};

// Prettier 2.8.4
type Type = {
  // comment
  readonly [key in Foo];
};
```

##### Group params in opening block statements ([#14067](prettier/prettier#14067) by [@jamescdavis](https://github.com/jamescdavis))

This is a follow-up to [#13930](prettier/prettier#13930) to establish wrapping consistency between opening block statements and else blocks by
grouping params in opening blocks. This causes params to break to a new line together and not be split across lines
unless the length of params exceeds the print width. This also updates the else block wrapping to behave exactly the
same as opening blocks.

<!-- prettier-ignore -->

```hbs
{{! Input }}
{{#block param param param param param param param param param param as |blockParam|}}
  Hello
{{else block param param param param param param param param param param as |blockParam|}}
  There
{{/block}}

{{! Prettier 2.8.3 }}
{{#block
  param
  param
  param
  param
  param
  param
  param
  param
  param
  param
  as |blockParam|
}}
  Hello
{{else block param
param
param
param
param
param
param
param
param
param}}
  There
{{/block}}

{{! Prettier 2.8.4 }}
{{#block
  param param param param param param param param param param
  as |blockParam|
}}
  Hello
{{else block
  param param param param param param param param param param
  as |blockParam|
}}
  There
{{/block}}
```

##### Ignore files in `.sl/` ([#14206](prettier/prettier#14206) by [@bolinfest](https://github.com/bolinfest))

In [Sapling SCM](https://sapling-scm.com/), `.sl/` is the folder where it stores its state, analogous to `.git/` in Git. It should be ignored in Prettier like the other SCM folders.

##### Recognize `@satisfies` in Closure-style type casts ([#14262](prettier/prettier#14262) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
const a = /** @Satisfies {Record<string, string>} */ ({hello: 1337});
const b = /** @type {Record<string, string>} */ ({hello: 1337});

// Prettier 2.8.3
const a = /** @Satisfies {Record<string, string>} */ { hello: 1337 };
const b = /** @type {Record<string, string>} */ ({ hello: 1337 });

// Prettier 2.8.4
const a = /** @Satisfies {Record<string, string>} */ ({hello: 1337});
const b = /** @type {Record<string, string>} */ ({hello: 1337});
```

##### Fix parens in inferred function return types with `extends` ([#14279](prettier/prettier#14279) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```ts
// Input
type Foo<T> = T extends ((a) => a is infer R extends string) ? R : never;

// Prettier 2.8.3 (First format)
type Foo<T> = T extends (a) => a is infer R extends string ? R : never;

// Prettier 2.8.3 (Second format)
SyntaxError: '?' expected. 

// Prettier 2.8.4
type Foo<T> = T extends ((a) => a is infer R extends string) ? R : never;
```


## [v2.8.3](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#283)

[diff](prettier/prettier@2.8.2...2.8.3)

##### Allow self-closing tags on custom elements ([#14170](prettier/prettier#14170) by [@fisker](https://github.com/fisker))

See [Angular v15.1.0 release note](https://github.com/angular/angular/releases/tag/15.1.0) for details.

<!-- prettier-ignore -->

```html
// Input
<app-test/>

// Prettier 2.8.2
SyntaxError: Only void and foreign elements can be self closed "app-test" (1:1)
> 1 | <app-test/>
    | ^^^^^^^^^
  2 |

// Prettier 2.8.3
<app-test />
```


## [v2.8.2](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#282)

[diff](prettier/prettier@2.8.1...2.8.2)

##### Don't lowercase link references ([#13155](prettier/prettier#13155) by [@DerekNonGeneric](https://github.com/DerekNonGeneric) & [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```markdown
<!-- Input -->
We now don't strictly follow the release notes format suggested by [Keep a Changelog].

[Keep a Changelog]: https://example.com/

<!-- Prettier 2.8.1 -->
We now don't strictly follow the release notes format suggested by [Keep a Changelog].

[keep a changelog]: https://example.com/
<!--
^^^^^^^^^^^^^^^^^^ lowercased
-->

<!-- Prettier 2.8.2 -->
<Same as input>
```

##### Preserve self-closing tags ([#13691](prettier/prettier#13691) by [@dcyriller](https://github.com/dcyriller))

<!-- prettier-ignore -->

```hbs
{{! Input }}
<div />
<div></div>
<custom-component />
<custom-component></custom-component>
<i />
<i></i>
<Component />
<Component></Component>

{{! Prettier 2.8.1 }}
<div></div>
<div></div>
<custom-component></custom-component>
<custom-component></custom-component>
<i></i>
<i></i>
<Component />
<Component />

{{! Prettier 2.8.2 }}
<div />
<div></div>
<custom-component />
<custom-component></custom-component>
<i />
<i></i>
<Component />
<Component />
```

##### Allow custom "else if"-like blocks with block params ([#13930](prettier/prettier#13930) by [@jamescdavis](https://github.com/jamescdavis))

[#13507](prettier/prettier#13507) added support for custom block keywords used with `else`, but failed to allow block params. This updates printer-glimmer to allow block params with custom "else if"-like blocks.

<!-- prettier-ignore -->

```hbs
{{! Input }}
{{#when isAtWork as |work|}}
  Ship that
  {{work}}!
{{else when isReading as |book|}}
  You can finish
  {{book}}
  eventually...
{{else}}
  Go to bed!
{{/when}}

{{! Prettier 2.8.1 }}
{{#when isAtWork as |work|}}
  Ship that
  {{work}}!
{{else when isReading}}
  You can finish
  {{book}}
  eventually...
{{else}}
  Go to bed!
{{/when}}

{{! Prettier 2.8.2 }}
{{#when isAtWork as |work|}}
  Ship that
  {{work}}!
{{else when isReading as |book|}}
  You can finish
  {{book}}
  eventually...
{{else}}
  Go to bed!
{{/when}}
```

##### Preserve empty lines between nested SCSS maps ([#13931](prettier/prettier#13931) by [@jneander](https://github.com/jneander))

<!-- prettier-ignore -->

```scss
/* Input */
$map: (
  'one': (
     'key': 'value',
  ),

  'two': (
     'key': 'value',
  ),
)

/* Prettier 2.8.1 */
$map: (
  'one': (
     'key': 'value',
  ),
  'two': (
     'key': 'value',
  ),
)

/* Prettier 2.8.2 */
$map: (
  'one': (
     'key': 'value',
  ),

  'two': (
     'key': 'value',
  ),
)
```

##### Fix missing parentheses when an expression statement starts with `let[` ([#14000](prettier/prettier#14000), [#14044](prettier/prettier#14044) by [@fisker](https://github.com/fisker), [@thorn0](https://github.com/thorn0))

<!-- prettier-ignore -->

```jsx
// Input
(let[0] = 2);

// Prettier 2.8.1
let[0] = 2;

// Prettier 2.8.1 (second format)
SyntaxError: Unexpected token (1:5)
> 1 | let[0] = 2;
    |     ^
  2 |

// Prettier 2.8.2
(let)[0] = 2;
```

##### Fix semicolon duplicated at the end of LESS file ([#14007](prettier/prettier#14007) by [@mvorisek](https://github.com/mvorisek))

<!-- prettier-ignore -->

```less
// Input
@variable: {
  field: something;
};

// Prettier 2.8.1
@variable: {
  field: something;
}; ;

// Prettier 2.8.2
@variable: {
  field: something;
};
```

##### Fix no space after unary minus when followed by opening parenthesis in LESS ([#14008](prettier/prettier#14008) by [@mvorisek](https://github.com/mvorisek))

<!-- prettier-ignore -->

```less
// Input
.unary_minus_single {
  margin: -(@A);
}

.unary_minus_multi {
  margin: 0 -(@A);
}

.binary_minus {
  margin: 0 - (@A);
}

// Prettier 2.8.1
.unary_minus_single {
  margin: - (@A);
}

.unary_minus_multi {
  margin: 0 - (@A);
}

.binary_minus {
  margin: 0 - (@A);
}

// Prettier 2.8.2
.unary_minus_single {
  margin: -(@A);
}

.unary_minus_multi {
  margin: 0 -(@A);
}

.binary_minus {
  margin: 0 - (@A);
}
```

##### Do not change case of property name if inside a variable declaration in LESS ([#14034](prettier/prettier#14034) by [@mvorisek](https://github.com/mvorisek))

<!-- prettier-ignore -->

```less
// Input
@var: {
  preserveCase: 0;
};

// Prettier 2.8.1
@var: {
  preservecase: 0;
};

// Prettier 2.8.2
@var: {
  preserveCase: 0;
};
```

##### Fix formatting for auto-accessors with comments ([#14038](prettier/prettier#14038) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
class A {
  @dec()
  // comment
  accessor b;
}

// Prettier 2.8.1
class A {
  @dec()
  accessor // comment
  b;
}

// Prettier 2.8.1 (second format)
class A {
  @dec()
  accessor; // comment
  b;
}

// Prettier 2.8.2
class A {
  @dec()
  // comment
  accessor b;
}
```

##### Add parentheses for TSTypeQuery to improve readability ([#14042](prettier/prettier#14042) by [@onishi-kohei](https://github.com/onishi-kohei))

<!-- prettier-ignore -->

```tsx
// Input
a as (typeof node.children)[number]
a as (typeof node.children)[]
a as ((typeof node.children)[number])[]

// Prettier 2.8.1
a as typeof node.children[number];
a as typeof node.children[];
a as typeof node.children[number][];

// Prettier 2.8.2
a as (typeof node.children)[number];
a as (typeof node.children)[];
a as (typeof node.children)[number][];
```

##### Fix displacing of comments in default switch case ([#14047](prettier/prettier#14047) by [@thorn0](https://github.com/thorn0))

It was a regression in Prettier 2.6.0.

<!-- prettier-ignore -->

```jsx
// Input
switch (state) {
  default:
    result = state; // no change
    break;
}

// Prettier 2.8.1
switch (state) {
  default: // no change
    result = state;
    break;
}

// Prettier 2.8.2
switch (state) {
  default:
    result = state; // no change
    break;
}
```

##### Support type annotations on auto accessors via `babel-ts` ([#14049](prettier/prettier#14049) by [@sosukesuzuki](https://github.com/sosukesuzuki))

[The bug that `@babel/parser` cannot parse auto accessors with type annotations](babel/babel#15205) has been fixed. So we now support it via `babel-ts` parser.

<!-- prettier-ignore -->

```tsx
class Foo {
  accessor prop: number;
}
```

##### Fix formatting of empty type parameters ([#14073](prettier/prettier#14073) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
const foo: bar</* comment */> = () => baz;

// Prettier 2.8.1
Error: Comment "comment" was not printed. Please report this error!

// Prettier 2.8.2
const foo: bar</* comment */> = () => baz;
```

##### Add parentheses to head of `ExpressionStatement` instead of the whole statement ([#14077](prettier/prettier#14077) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
({}).toString.call(foo) === "[object Array]"
  ? foo.forEach(iterateArray)
  : iterateObject(foo);

// Prettier 2.8.1
({}.toString.call(foo) === "[object Array]"
  ? foo.forEach(iterateArray)
  : iterateObject(foo));

// Prettier 2.8.2
({}).toString.call(foo.forEach) === "[object Array]"
  ? foo.forEach(iterateArray)
  : iterateObject(foo);
```

##### Fix comments after directive ([#14081](prettier/prettier#14081) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
"use strict" /* comment */;

// Prettier 2.8.1 (with other js parsers except `babel`)
Error: Comment "comment" was not printed. Please report this error!

// Prettier 2.8.2
<Same as input>
```

##### Fix formatting for comments inside JSX attribute ([#14082](prettier/prettier#14082) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
function MyFunctionComponent() {
  <button label=/*old*/"new">button</button>
}

// Prettier 2.8.1
Error: Comment "old" was not printed. Please report this error!

// Prettier 2.8.2
function MyFunctionComponent() {
  <button label=/*old*/ "new">button</button>;
}
```

##### Quote numeric keys for json-stringify parser ([#14083](prettier/prettier#14083) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
{0: 'value'}

// Prettier 2.8.1
{
  0: "value"
}

// Prettier 2.8.2
{
  "0": "value"
}
```

##### Fix removing commas from function arguments in maps ([#14089](prettier/prettier#14089) by [@sosukesuzuki](https://github.com/sosukesuzuki))

<!-- prettier-ignore -->

```scss
/* Input */
$foo: map-fn(
  (
    "#{prop}": inner-fn($first, $second),
  )
);

/* Prettier 2.8.1 */
$foo: map-fn(("#{prop}": inner-fn($first $second)));

/* Prettier 2.8.2 */
$foo: map-fn(
  (
    "#{prop}": inner-fn($first, $second),
  )
);

```

##### Do not insert space in LESS property access ([#14103](prettier/prettier#14103) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```less
// Input
a {
  color: @Colors[@white];
}

// Prettier 2.8.1
a {
  color: @Colors[ @white];
}

// Prettier 2.8.2
<Same as input>
```


## [v2.8.1](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#281)

[diff](prettier/prettier@2.8.0...2.8.1)

##### Fix SCSS map in arguments ([#9184](prettier/prettier#9184) by [@agamkrbit](https://github.com/agamkrbit))

<!-- prettier-ignore -->

```scss
// Input
$display-breakpoints: map-deep-merge(
  (
    "print-only": "only print",
    "screen-only": "only screen",
    "xs-only": "only screen and (max-width: #{map-get($grid-breakpoints, "sm")-1})",
  ),
  $display-breakpoints
);

// Prettier 2.8.0
$display-breakpoints: map-deep-merge(
  (
    "print-only": "only print",
    "screen-only": "only screen",
    "xs-only": "only screen and (max-width: #{map-get($grid-breakpoints, " sm
      ")-1})",
  ),
  $display-breakpoints
);

// Prettier 2.8.1
$display-breakpoints: map-deep-merge(
  (
    "print-only": "only print",
    "screen-only": "only screen",
    "xs-only": "only screen and (max-width: #{map-get($grid-breakpoints, "sm")-1})",
  ),
  $display-breakpoints
);
```

##### Support auto accessors syntax ([#13919](prettier/prettier#13919) by [@sosukesuzuki](https://github.com/sosukesuzuki))

Support for [Auto Accessors Syntax](https://devblogs.microsoft.com/typescript/announcing-typescript-4-9/#auto-accessors-in-classes) landed in TypeScript 4.9.

(Doesn't work well with `babel-ts` parser)

<!-- prettier-ignore -->

```tsx
class Foo {
  accessor foo: number = 3;
}
```


## [v2.8.0](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#280)

[diff](prettier/prettier@2.7.1...2.8.0)

🔗 [Release Notes](https://prettier.io/blog/2022/11/23/2.8.0.html)


## [v2.7.1](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#271)

[diff](prettier/prettier@2.7.0...2.7.1)

##### Keep useful empty lines in description ([#13013](prettier/prettier#13013) by [@chimurai](https://github.com/chimurai))

<!-- prettier-ignore -->

```graphql
```
renovate bot added a commit to andrei-picus-tink/auto-renovate that referenced this pull request Aug 19, 2024
| datasource | package  | from  | to    |
| ---------- | -------- | ----- | ----- |
| npm        | prettier | 2.7.0 | 2.8.8 |


## [v2.8.8](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#288)

This version is a republished version of v2.8.7.
A bad version was accidentally published and [it can't be unpublished](npm/cli#1686), apologies for the churn.


## [v2.8.7](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#287)

[diff](prettier/prettier@2.8.6...2.8.7)

##### Allow multiple decorators on same getter/setter ([#14584](prettier/prettier#14584) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```ts
// Input
class A {
  @decorator()
  get foo () {}
  
  @decorator()
  set foo (value) {}
}

// Prettier 2.8.6
SyntaxError: Decorators cannot be applied to multiple get/set accessors of the same name. (5:3)
  3 |   get foo () {}
  4 |   
> 5 |   @decorator()
    |   ^^^^^^^^^^^^
  6 |   set foo (value) {}
  7 | }

// Prettier 2.8.7
class A {
  @decorator()
  get foo() {}

  @decorator()
  set foo(value) {}
}
```


## [v2.8.6](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#286)

[diff](prettier/prettier@2.8.5...2.8.6)

##### Allow decorators on private members and class expressions ([#14548](prettier/prettier#14548) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```ts
// Input
class A {
  @decorator()
  #privateMethod () {}
}

// Prettier 2.8.5
SyntaxError: Decorators are not valid here. (2:3)
  1 | class A {
> 2 |   @decorator()
    |   ^^^^^^^^^^^^
  3 |   #privateMethod () {}
  4 | }

// Prettier 2.8.6
class A {
  @decorator()
  #privateMethod() {}
}
```


## [v2.8.5](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#285)

[diff](prettier/prettier@2.8.4...2.8.5)

##### Support TypeScript 5.0 ([#14391](prettier/prettier#14391) by [@fisker](https://github.com/fisker), [#13819](prettier/prettier#13819) by [@fisker](https://github.com/fisker), [@sosukesuzuki](https://github.com/sosukesuzuki))

TypeScript 5.0 introduces two new syntactic features:

-   `const` modifiers for type parameters
-   `export type *` declarations

##### Add missing parentheses for decorator ([#14393](prettier/prettier#14393) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
class Person {
  @(myDecoratorArray[0])
  greet() {}
}

// Prettier 2.8.4
class Person {
  @myDecoratorArray[0]
  greet() {}
}

// Prettier 2.8.5
class Person {
  @(myDecoratorArray[0])
  greet() {}
}
```

##### Add parentheses for `TypeofTypeAnnotation` to improve readability ([#14458](prettier/prettier#14458) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```tsx
// Input
type A = (typeof node.children)[];

// Prettier 2.8.4
type A = typeof node.children[];

// Prettier 2.8.5
type A = (typeof node.children)[];
```

##### Support `max_line_length=off` when parsing `.editorconfig` ([#14516](prettier/prettier#14516) by [@josephfrazier](https://github.com/josephfrazier))

If an .editorconfig file is in your project and it sets `max_line_length=off` for the file you're formatting,
it will be interpreted as a `printWidth` of `Infinity` rather than being ignored
(which previously resulted in the default `printWidth` of 80 being applied, if not overridden by Prettier-specific configuration).

<!-- prettier-ignore -->

```html
<!-- Input -->
<div className='HelloWorld' title={`You are visitor number ${ num }`} onMouseOver={onMouseOver}/>

<!-- Prettier 2.8.4 -->
<div
  className="HelloWorld"
  title={`You are visitor number ${num}`}
  onMouseOver={onMouseOver}
/>;

<!-- Prettier 2.8.5 -->
<div className="HelloWorld" title={`You are visitor number ${num}`} onMouseOver={onMouseOver} />;
```


## [v2.8.4](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#284)

[diff](prettier/prettier@2.8.3...2.8.4)

##### Fix leading comments in mapped types with `readonly` ([#13427](prettier/prettier#13427) by [@thorn0](https://github.com/thorn0), [@sosukesuzuki](https://github.com/sosukesuzuki))

<!-- prettier-ignore -->

```tsx
// Input
type Type = {
  // comment
  readonly [key in Foo];
};

// Prettier 2.8.3
type Type = {
  readonly // comment
  [key in Foo];
};

// Prettier 2.8.4
type Type = {
  // comment
  readonly [key in Foo];
};
```

##### Group params in opening block statements ([#14067](prettier/prettier#14067) by [@jamescdavis](https://github.com/jamescdavis))

This is a follow-up to [#13930](prettier/prettier#13930) to establish wrapping consistency between opening block statements and else blocks by
grouping params in opening blocks. This causes params to break to a new line together and not be split across lines
unless the length of params exceeds the print width. This also updates the else block wrapping to behave exactly the
same as opening blocks.

<!-- prettier-ignore -->

```hbs
{{! Input }}
{{#block param param param param param param param param param param as |blockParam|}}
  Hello
{{else block param param param param param param param param param param as |blockParam|}}
  There
{{/block}}

{{! Prettier 2.8.3 }}
{{#block
  param
  param
  param
  param
  param
  param
  param
  param
  param
  param
  as |blockParam|
}}
  Hello
{{else block param
param
param
param
param
param
param
param
param
param}}
  There
{{/block}}

{{! Prettier 2.8.4 }}
{{#block
  param param param param param param param param param param
  as |blockParam|
}}
  Hello
{{else block
  param param param param param param param param param param
  as |blockParam|
}}
  There
{{/block}}
```

##### Ignore files in `.sl/` ([#14206](prettier/prettier#14206) by [@bolinfest](https://github.com/bolinfest))

In [Sapling SCM](https://sapling-scm.com/), `.sl/` is the folder where it stores its state, analogous to `.git/` in Git. It should be ignored in Prettier like the other SCM folders.

##### Recognize `@satisfies` in Closure-style type casts ([#14262](prettier/prettier#14262) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
const a = /** @Satisfies {Record<string, string>} */ ({hello: 1337});
const b = /** @type {Record<string, string>} */ ({hello: 1337});

// Prettier 2.8.3
const a = /** @Satisfies {Record<string, string>} */ { hello: 1337 };
const b = /** @type {Record<string, string>} */ ({ hello: 1337 });

// Prettier 2.8.4
const a = /** @Satisfies {Record<string, string>} */ ({hello: 1337});
const b = /** @type {Record<string, string>} */ ({hello: 1337});
```

##### Fix parens in inferred function return types with `extends` ([#14279](prettier/prettier#14279) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```ts
// Input
type Foo<T> = T extends ((a) => a is infer R extends string) ? R : never;

// Prettier 2.8.3 (First format)
type Foo<T> = T extends (a) => a is infer R extends string ? R : never;

// Prettier 2.8.3 (Second format)
SyntaxError: '?' expected. 

// Prettier 2.8.4
type Foo<T> = T extends ((a) => a is infer R extends string) ? R : never;
```


## [v2.8.3](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#283)

[diff](prettier/prettier@2.8.2...2.8.3)

##### Allow self-closing tags on custom elements ([#14170](prettier/prettier#14170) by [@fisker](https://github.com/fisker))

See [Angular v15.1.0 release note](https://github.com/angular/angular/releases/tag/15.1.0) for details.

<!-- prettier-ignore -->

```html
// Input
<app-test/>

// Prettier 2.8.2
SyntaxError: Only void and foreign elements can be self closed "app-test" (1:1)
> 1 | <app-test/>
    | ^^^^^^^^^
  2 |

// Prettier 2.8.3
<app-test />
```


## [v2.8.2](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#282)

[diff](prettier/prettier@2.8.1...2.8.2)

##### Don't lowercase link references ([#13155](prettier/prettier#13155) by [@DerekNonGeneric](https://github.com/DerekNonGeneric) & [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```markdown
<!-- Input -->
We now don't strictly follow the release notes format suggested by [Keep a Changelog].

[Keep a Changelog]: https://example.com/

<!-- Prettier 2.8.1 -->
We now don't strictly follow the release notes format suggested by [Keep a Changelog].

[keep a changelog]: https://example.com/
<!--
^^^^^^^^^^^^^^^^^^ lowercased
-->

<!-- Prettier 2.8.2 -->
<Same as input>
```

##### Preserve self-closing tags ([#13691](prettier/prettier#13691) by [@dcyriller](https://github.com/dcyriller))

<!-- prettier-ignore -->

```hbs
{{! Input }}
<div />
<div></div>
<custom-component />
<custom-component></custom-component>
<i />
<i></i>
<Component />
<Component></Component>

{{! Prettier 2.8.1 }}
<div></div>
<div></div>
<custom-component></custom-component>
<custom-component></custom-component>
<i></i>
<i></i>
<Component />
<Component />

{{! Prettier 2.8.2 }}
<div />
<div></div>
<custom-component />
<custom-component></custom-component>
<i />
<i></i>
<Component />
<Component />
```

##### Allow custom "else if"-like blocks with block params ([#13930](prettier/prettier#13930) by [@jamescdavis](https://github.com/jamescdavis))

[#13507](prettier/prettier#13507) added support for custom block keywords used with `else`, but failed to allow block params. This updates printer-glimmer to allow block params with custom "else if"-like blocks.

<!-- prettier-ignore -->

```hbs
{{! Input }}
{{#when isAtWork as |work|}}
  Ship that
  {{work}}!
{{else when isReading as |book|}}
  You can finish
  {{book}}
  eventually...
{{else}}
  Go to bed!
{{/when}}

{{! Prettier 2.8.1 }}
{{#when isAtWork as |work|}}
  Ship that
  {{work}}!
{{else when isReading}}
  You can finish
  {{book}}
  eventually...
{{else}}
  Go to bed!
{{/when}}

{{! Prettier 2.8.2 }}
{{#when isAtWork as |work|}}
  Ship that
  {{work}}!
{{else when isReading as |book|}}
  You can finish
  {{book}}
  eventually...
{{else}}
  Go to bed!
{{/when}}
```

##### Preserve empty lines between nested SCSS maps ([#13931](prettier/prettier#13931) by [@jneander](https://github.com/jneander))

<!-- prettier-ignore -->

```scss
/* Input */
$map: (
  'one': (
     'key': 'value',
  ),

  'two': (
     'key': 'value',
  ),
)

/* Prettier 2.8.1 */
$map: (
  'one': (
     'key': 'value',
  ),
  'two': (
     'key': 'value',
  ),
)

/* Prettier 2.8.2 */
$map: (
  'one': (
     'key': 'value',
  ),

  'two': (
     'key': 'value',
  ),
)
```

##### Fix missing parentheses when an expression statement starts with `let[` ([#14000](prettier/prettier#14000), [#14044](prettier/prettier#14044) by [@fisker](https://github.com/fisker), [@thorn0](https://github.com/thorn0))

<!-- prettier-ignore -->

```jsx
// Input
(let[0] = 2);

// Prettier 2.8.1
let[0] = 2;

// Prettier 2.8.1 (second format)
SyntaxError: Unexpected token (1:5)
> 1 | let[0] = 2;
    |     ^
  2 |

// Prettier 2.8.2
(let)[0] = 2;
```

##### Fix semicolon duplicated at the end of LESS file ([#14007](prettier/prettier#14007) by [@mvorisek](https://github.com/mvorisek))

<!-- prettier-ignore -->

```less
// Input
@variable: {
  field: something;
};

// Prettier 2.8.1
@variable: {
  field: something;
}; ;

// Prettier 2.8.2
@variable: {
  field: something;
};
```

##### Fix no space after unary minus when followed by opening parenthesis in LESS ([#14008](prettier/prettier#14008) by [@mvorisek](https://github.com/mvorisek))

<!-- prettier-ignore -->

```less
// Input
.unary_minus_single {
  margin: -(@A);
}

.unary_minus_multi {
  margin: 0 -(@A);
}

.binary_minus {
  margin: 0 - (@A);
}

// Prettier 2.8.1
.unary_minus_single {
  margin: - (@A);
}

.unary_minus_multi {
  margin: 0 - (@A);
}

.binary_minus {
  margin: 0 - (@A);
}

// Prettier 2.8.2
.unary_minus_single {
  margin: -(@A);
}

.unary_minus_multi {
  margin: 0 -(@A);
}

.binary_minus {
  margin: 0 - (@A);
}
```

##### Do not change case of property name if inside a variable declaration in LESS ([#14034](prettier/prettier#14034) by [@mvorisek](https://github.com/mvorisek))

<!-- prettier-ignore -->

```less
// Input
@var: {
  preserveCase: 0;
};

// Prettier 2.8.1
@var: {
  preservecase: 0;
};

// Prettier 2.8.2
@var: {
  preserveCase: 0;
};
```

##### Fix formatting for auto-accessors with comments ([#14038](prettier/prettier#14038) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
class A {
  @dec()
  // comment
  accessor b;
}

// Prettier 2.8.1
class A {
  @dec()
  accessor // comment
  b;
}

// Prettier 2.8.1 (second format)
class A {
  @dec()
  accessor; // comment
  b;
}

// Prettier 2.8.2
class A {
  @dec()
  // comment
  accessor b;
}
```

##### Add parentheses for TSTypeQuery to improve readability ([#14042](prettier/prettier#14042) by [@onishi-kohei](https://github.com/onishi-kohei))

<!-- prettier-ignore -->

```tsx
// Input
a as (typeof node.children)[number]
a as (typeof node.children)[]
a as ((typeof node.children)[number])[]

// Prettier 2.8.1
a as typeof node.children[number];
a as typeof node.children[];
a as typeof node.children[number][];

// Prettier 2.8.2
a as (typeof node.children)[number];
a as (typeof node.children)[];
a as (typeof node.children)[number][];
```

##### Fix displacing of comments in default switch case ([#14047](prettier/prettier#14047) by [@thorn0](https://github.com/thorn0))

It was a regression in Prettier 2.6.0.

<!-- prettier-ignore -->

```jsx
// Input
switch (state) {
  default:
    result = state; // no change
    break;
}

// Prettier 2.8.1
switch (state) {
  default: // no change
    result = state;
    break;
}

// Prettier 2.8.2
switch (state) {
  default:
    result = state; // no change
    break;
}
```

##### Support type annotations on auto accessors via `babel-ts` ([#14049](prettier/prettier#14049) by [@sosukesuzuki](https://github.com/sosukesuzuki))

[The bug that `@babel/parser` cannot parse auto accessors with type annotations](babel/babel#15205) has been fixed. So we now support it via `babel-ts` parser.

<!-- prettier-ignore -->

```tsx
class Foo {
  accessor prop: number;
}
```

##### Fix formatting of empty type parameters ([#14073](prettier/prettier#14073) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
const foo: bar</* comment */> = () => baz;

// Prettier 2.8.1
Error: Comment "comment" was not printed. Please report this error!

// Prettier 2.8.2
const foo: bar</* comment */> = () => baz;
```

##### Add parentheses to head of `ExpressionStatement` instead of the whole statement ([#14077](prettier/prettier#14077) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
({}).toString.call(foo) === "[object Array]"
  ? foo.forEach(iterateArray)
  : iterateObject(foo);

// Prettier 2.8.1
({}.toString.call(foo) === "[object Array]"
  ? foo.forEach(iterateArray)
  : iterateObject(foo));

// Prettier 2.8.2
({}).toString.call(foo.forEach) === "[object Array]"
  ? foo.forEach(iterateArray)
  : iterateObject(foo);
```

##### Fix comments after directive ([#14081](prettier/prettier#14081) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
"use strict" /* comment */;

// Prettier 2.8.1 (with other js parsers except `babel`)
Error: Comment "comment" was not printed. Please report this error!

// Prettier 2.8.2
<Same as input>
```

##### Fix formatting for comments inside JSX attribute ([#14082](prettier/prettier#14082) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
function MyFunctionComponent() {
  <button label=/*old*/"new">button</button>
}

// Prettier 2.8.1
Error: Comment "old" was not printed. Please report this error!

// Prettier 2.8.2
function MyFunctionComponent() {
  <button label=/*old*/ "new">button</button>;
}
```

##### Quote numeric keys for json-stringify parser ([#14083](prettier/prettier#14083) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
{0: 'value'}

// Prettier 2.8.1
{
  0: "value"
}

// Prettier 2.8.2
{
  "0": "value"
}
```

##### Fix removing commas from function arguments in maps ([#14089](prettier/prettier#14089) by [@sosukesuzuki](https://github.com/sosukesuzuki))

<!-- prettier-ignore -->

```scss
/* Input */
$foo: map-fn(
  (
    "#{prop}": inner-fn($first, $second),
  )
);

/* Prettier 2.8.1 */
$foo: map-fn(("#{prop}": inner-fn($first $second)));

/* Prettier 2.8.2 */
$foo: map-fn(
  (
    "#{prop}": inner-fn($first, $second),
  )
);

```

##### Do not insert space in LESS property access ([#14103](prettier/prettier#14103) by [@fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```less
// Input
a {
  color: @Colors[@white];
}

// Prettier 2.8.1
a {
  color: @Colors[ @white];
}

// Prettier 2.8.2
<Same as input>
```


## [v2.8.1](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#281)

[diff](prettier/prettier@2.8.0...2.8.1)

##### Fix SCSS map in arguments ([#9184](prettier/prettier#9184) by [@agamkrbit](https://github.com/agamkrbit))

<!-- prettier-ignore -->

```scss
// Input
$display-breakpoints: map-deep-merge(
  (
    "print-only": "only print",
    "screen-only": "only screen",
    "xs-only": "only screen and (max-width: #{map-get($grid-breakpoints, "sm")-1})",
  ),
  $display-breakpoints
);

// Prettier 2.8.0
$display-breakpoints: map-deep-merge(
  (
    "print-only": "only print",
    "screen-only": "only screen",
    "xs-only": "only screen and (max-width: #{map-get($grid-breakpoints, " sm
      ")-1})",
  ),
  $display-breakpoints
);

// Prettier 2.8.1
$display-breakpoints: map-deep-merge(
  (
    "print-only": "only print",
    "screen-only": "only screen",
    "xs-only": "only screen and (max-width: #{map-get($grid-breakpoints, "sm")-1})",
  ),
  $display-breakpoints
);
```

##### Support auto accessors syntax ([#13919](prettier/prettier#13919) by [@sosukesuzuki](https://github.com/sosukesuzuki))

Support for [Auto Accessors Syntax](https://devblogs.microsoft.com/typescript/announcing-typescript-4-9/#auto-accessors-in-classes) landed in TypeScript 4.9.

(Doesn't work well with `babel-ts` parser)

<!-- prettier-ignore -->

```tsx
class Foo {
  accessor foo: number = 3;
}
```


## [v2.8.0](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#280)

[diff](prettier/prettier@2.7.1...2.8.0)

🔗 [Release Notes](https://prettier.io/blog/2022/11/23/2.8.0.html)


## [v2.7.1](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#271)

[diff](prettier/prettier@2.7.0...2.7.1)

##### Keep useful empty lines in description ([#13013](prettier/prettier#13013) by [@chimurai](https://github.com/chimurai))

<!-- prettier-ignore -->

```graphql
```
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3 participants