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Unicodeã¨ECMAScriptã«é–¢ã™ã‚‹efclã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (7)

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JavaScriptã®Unicode Property Escapesã«ã¤ã„ã¦ã®è£œèª¬
ã“ã®è‰²ã®2ã¤ã¯Unicode 15.0.0ã§å°Žå…¥ã•ã‚ŒãŸã“ã¨ã«ä¼´ã„ã€ECMAScript 2023ã§è¿½åŠ ã•ã‚Œã‚‹è¦‹è¾¼ã¿ã§ã™ã€‚ ã“ã®è‰²ã®5ã¤ã¯Unicode 14.0.0ã§å°Žå…¥ã•ã‚ŒãŸã“ã¨ã«ä¼´ã„ã€ECMAScript 2022ã§è¿½åŠ ã•ã‚ŒãŸã‚‚ã®ã§ã™ã€‚ ã“ã®è‰²ã®4ã¤ã¯Unicode 13.0.0ã§å°Žå…¥ã•ã‚ŒãŸã“ã¨ã«ä¼´ã„ã€ECMAScript 2021ã§è¿½åŠ ã•ã‚ŒãŸã‚‚ã®ã§ã™ã€‚ Hiraganaã¨Katakanaã¯ã‚ã‚‹ã®ã«KanjiãŒãªã„ã¨æ€ã‚ã‚Œã‚‹ã‹ã‚‚ã—ã‚Œã¾ã›ã‚“ãŒã€Han (Hani) ã¨ã„ã†ã®ãŒæ¼¢å—ã®ã“ã¨ã§ã™ï¼ˆã€Œæ¼¢å—ã€ã®ä¸å›½èªžèªã¿ã‚’ãƒãƒ¼ãƒžå—åŒ–ã—ãŸHanziã«ç”±æ¥ï¼‰ã€‚ Unicodeã®ãƒ‡ãƒ¼ã‚¿ãƒ•ã‚¡ã‚¤ãƒ«ä¸ã«ã¯æ™‚æŠ˜Katakana_Or_Hiragana (Hrkt) ã¨ã„ã†ã‚¹ã‚¯ãƒªãƒ—ãƒˆåãŒå‡ºã¦ãã‚‹ã“ã¨ãŒã‚ã‚Šã¾ã™ãŒã€ã“ã‚Œã¯åˆæœŸã®é ƒã«ä½¿ã‚ã‚Œã¦ã„ãŸã‚‚ã®ã®ç¾åœ¨ã¯ã©ã®ã‚³ãƒ¼ãƒ‰ãƒã‚¤ãƒ³ãƒˆã¨ã‚‚çµã³ä»˜ã‘ã‚‰ã‚Œã¦ã„ã¾ã›ã‚“ï¼ˆUAX #44ä¸
efcl 2024/02/08
ECMAScript 2018ã‚ˆã‚ŠRegExpã§ä½¿ãˆã‚‹ã‚ˆã†ã«ãªã£ãŸUnicodeãƒ—ãƒãƒ‘ãƒ†ã‚£ãƒ¼ã‚¨ã‚¹ã‚±ãƒ¼ãƒ— (\p{...}, \P{...}) ã«ã¤ã„ã¦ã®è£œèª¬ã€‚ sc,scxã«ã¤ã„ã¦

ECMAScript

Unicode

RegExp
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GitHub - tc39/proposal-is-usv-string: a proposal for a method to determine if a String is welll-formed Unicode
ECMAScript string values are a finite ordered sequence of zero or more 16-bit unsigned integer values. However, ECMAScript does not place any restrictions or requirements on the integer values except that they must be 16-bit unsigned integers. In well-formed strings, each integer value in the sequence represents a single 16-bit code unit of UTF-16-encoded Unicode text. However, not all sequences o
efcl 2022/10/24
`String.prototype.isWellFormed()`ã¨`String.prototype.toWellFormed()`ã®Proposalã€‚ USVStringçš„ãªä¸å®Œå…¨ãªã‚µãƒã‚²ãƒ¼ãƒˆãƒšã‚¢ãŒå…¥ã£ã¦ãªã„ã“ã¨ã‚’ä¿è¨¼ã§ãã‚‹API

ECMAScript

proposal

Unicode
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GitHub - tc39/proposal-regexp-v-flag: UTS18 set notation in regular expressions
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efcl 2021/05/12
Unicodeã®subtractionã€intersectionãªã©ã‚’RegExpã§ã‚µãƒãƒ¼ãƒˆã™ã‚‹Proposal

Unicode

ECMAScript

proposal
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JS: String Code Unit
efcl 2019/01/25
JavaScriptã«ãŠã‘ã‚‹Code Pointã€Code Unitã€ã‚µãƒã‚²ãƒ¼ãƒˆãƒšã‚¢ã®è§£èª¬

JavaScript

Unicode

ECMAScript
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JavaScript ã«ãŠã‘ã‚‹æ–‡å—ã‚³ãƒ¼ãƒ‰ã¨ã€Œæ–‡å—æ•°ã€ã®æ•°ãˆæ–¹ | blog.jxck.io
Intro textarea ãªã©ã«å…¥åŠ›ã•ã‚ŒãŸæ–‡å—æ•°ã‚’ã€JS ã§æ•°ãˆãŸã„å ´åˆãŒã‚ã‚‹ã€‚ ã“ã“ã§ .length ã‚’æ•°ãˆã‚‹ã ã‘ã§ã¯ãƒ€ãƒ¡ãªç†ç”±ã¯ã€æ–‡å—ã‚³ãƒ¼ãƒ‰ã‚„ JS ã®å†…éƒ¨è¡¨ç¾ã®è©±ã‚’ç†è§£ã™ã‚‹å¿…è¦ãŒã‚ã‚‹ã€‚ å¤šè¨€èªžã‚„çµµæ–‡å—å¯¾å¿œãªã©ã‚‚è¸ã¾ãˆãŸä¸Šã§ã€ã©ã†å‡¦ç†ã™ã‚‹ã¹ããªã®ã‹ã€‚ ãã‚Œè‡ªä½“ã¯æž¯ã‚ŒãŸè©±é¡Œã§ã¯ã‚ã‚‹ãŒã€è¿‘å¹´ ECMAScript ã«è¿½åŠ ã•ã‚ŒãŸæ©Ÿèƒ½ãªã©ã‚’äº¤ãˆã¦è§£èª¬ã™ã‚‹ã€‚ ãªãŠã€æ–‡å—ã‚³ãƒ¼ãƒ‰ã®ä»•çµ„ã¿ã‚’è©³è§£ã™ã‚‹ã“ã¨è‡ªä½“ãŒç›®çš„ã§ã¯ç„¡ã„ãŸã‚ã€BOM, UCS-2, Endian, æ´å²çš„çµŒç·¯ãªã©ã€ã“ã®æ‰‹ã®è©±é¡Œã«ã¤ãç‰©ãªè©±ã®ä¸€éƒ¨ã¯çœãã“ã¨ã¨ã™ã‚‹ã€‚ 1 æ–‡å—ã¨ã¯ä½•ã‹ Unicode ã¯å…¨ã¦ã®æ–‡å—ã« ID ã‚’æŒ¯ã‚‹ã“ã¨ã‚’ç›®çš„ã¨ã—ã¦ã„ã‚‹ã€‚ ä¾‹ãˆã° ðŸ˜ (loudly crying face) ãªã‚‰ 0x1F62D ã ã€‚ 1 ã¤ã®æ–‡å—ã« 1 ã¤ã® ID ãŒå‰²ã‚Šå½“ã¦ã‚‰ã‚Œã¦ã„ã‚‹ã®ã ã‹ã‚‰ã€æ–‡å—ã®æ•°ã‚’æ•°ãˆã‚‹å ´åˆã¯ã€ã“ã® ID ã®
efcl 2017/03/03
https://asciidwango.github.io/js-primer/basic/string/ æœ€è¿‘åŒã˜è©±ã‚’æ›¸ã„ã¦ãŸã€‚ ã‚‚ã†å°‘ã—JavaScriptã‚ˆã‚Šã§Unicodeåˆ†ã¯è–„ã‚ã®å†…å®¹

JavaScript

ECMAScript

Unicode
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ECMAScriptÂ® 2016 Language Specification
Toggle shortcuts help? Toggle "can call user code" annotationsu Navigate to/from multipagem Jump to search box/ Toggle pinning of the current clausep Jump to the nth pin1-9 Jump to the 10th pin0 Jump to the most recent link target` Introduction1 Scope+2 Conformance2.1 Example Normative Optional Clause Heading2.2 Example Legacy Clause Heading2.3 Example Legacy Normative Optional Clause Heading3 Nor
efcl 2016/11/09
ES2015+ã®toStringã¯å¾Œæ–¹äº’æ›æ€§ã®ãŸã‚ã«ãƒ“ãƒ«ãƒ‰ã‚¤ãƒ³ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã®`[[Class]]`ã‚’è¿”ã—ã¦ãŸæŒ™å‹•ã‚’ã‚·ãƒŸãƒ¥ãƒ¬ãƒ¼ãƒˆã—ã¦ã‚‹ã€‚ toStringã¯type testingã®ä»•çµ„ã¿ã‚’æä¾›ã™ã‚‹ã®ãŒç›®çš„ã§ã¯ãªã„ã€‚ `@@toStringTag`

ECMAScript

spec
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Unicode property escapes in JavaScript regular expressions Â· Mathias Bynens
ES2018 adds support for Unicode property escapes of the form \p{â€¦} and \P{â€¦} to JavaScript regular expressions. This article explains what Unicode property escapes are, how they work, and why theyâ€™re useful. Introduction The Unicode Standard assigns various properties and property values to every symbol. For example, to get the set of symbols that are used in the Greek script, search the Unicode d
efcl 2016/08/01
`\p{â€¦}` and `\P{â€¦}`Unicode property escapes/ Proposal

ECMAScript

Unicode
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1