[B! JavaScript] k_oshimaã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

k_oshima id:k_oshima

JavaScriptã«é–¢ã™ã‚‹k_oshimaã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (95)

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5æœˆ29æ—¥ã€Brandon Dongæ°ãŒã€ŒWhy are 2025/05/28 and 2025-05-28 different days in JavaScript?ã€ã¨é¡Œã—ãŸè¨˜äº‹ã‚’å…¬é–‹ã—ãŸã€‚ã“ã®è¨˜äº‹ã§ã¯ã€JavaScript Date ã‚³ãƒ³ã‚¹ãƒˆãƒ©ã‚¯ã‚¿ãŒæ—¥ä»˜æ–‡å—åˆ—ã‚’ã©ã®ã‚ˆã†ã«è§£é‡ˆã™ã‚‹ã‹ã«ã‚ˆã£ã¦â€œåŒã˜ã‚ˆã†ã«è¦‹ãˆã‚‹æ—¥ä»˜â€ãŒç•°ãªã‚‹ã‚«ãƒ¬ãƒ³ãƒ€ãƒ¼æ—¥ã¸å¤‰æ›ã•ã‚Œã‚‹ä»•çµ„ã¿ã¨ã€ãã®æ´å²çš„çµŒç·¯ã«ã¤ã„ã¦è©³ã—ãç´¹ä»‹ã•ã‚Œã¦ã„ã‚‹ã€‚ä»¥ä¸‹ã«ã€ãã®å†…å®¹ã‚’ç´¹ä»‹ã™ã‚‹ã€‚ ãƒãƒ¼ã‚«ãƒ«æ™‚åˆ»ã¨ UTC ã§æºã‚Œã‚‹ Date ã®æŒ™å‹• ã¾ãšç†è€…ã¯ã€æ¬¡ã®ã‚³ãƒ¼ãƒ‰ç‰‡ã§ç¾è±¡ã‚’ç¤ºã—ã¦ã„ã‚‹ã€‚ console.log(new Date('2025/05/28').toDateString()); console.log(new Date('2025-05-28').toDateString()); console.log(new Date('2025-5-
k_oshima 2025/05/30
javascript
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Running JavaScript within Ruby
This talk explores the journey of building quickjs.rb, a native Ruby extension for running JavaScript using QuickJS. The project began with the need to â€¦
k_oshima 2025/04/22
Ruby

javascript

Rubykaigi
ãƒªãƒ³ã‚¯
Porffor
An ahead-of-time JavaScript compiler Porffor compiles JavaScript ahead-of-time to WebAssembly and native binaries. It is currently in pre-alpha with usability beginning in 2025. JS -> Wasm Porffor's WebAssembly output is 10-30x smaller and faster compared to existing JS -> Wasm projects as Porffor compiles JS instead of bundling an interpreter in the Wasm output. JS as Wasm allows for sandboxed ex
k_oshima 2024/07/31
JavaScript

Wasm
ãƒªãƒ³ã‚¯
ARM ã«å˜åœ¨ã™ã‚‹ JavaScript å°‚ç”¨å‘½ä»¤ã€ŒFJCVTZSã€ã‚’è¿½ã†ï¼ˆã¤ã„ã§ã« V8 ã‚’ãƒ“ãƒ«ãƒ‰ã™ã‚‹ï¼‰
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k_oshima 2024/06/10
JavaScript

ARM
ãƒªãƒ³ã‚¯
JavaScript ã§ CPU ãŒ Intel ã‹ã©ã†ã‹ã‚’åˆ¤å®šã™ã‚‹ï¼ˆã¤ã„ã§ã« JIT ã‚’æ¤œçŸ¥ã™ã‚‹ï¼‰
å…ˆæ—¥ã€æ¬¡ã®ã‚ˆã†ãª Tweet ã‚’è¦‹ã‹ã‘ã¾ã—ãŸ TIL I discovered that TensorFlow.js uses an interesting trick to sniff your CPU architecture in WebAssembly. pic.twitter.com/LVyywIM48I â€” Robert Knight (@robknight_) January 4, 2023 é¢ç™½ã‹ã£ãŸã®ã§ã€ãªãœã“ã†ãªã‚‹ã®ã‹ã®è§£èª¬ã¨ã€ã¤ã„ã§ã«ã“ã®ãƒ†ã‚¯ãƒ‹ãƒƒã‚¯ã‚’ä½¿ã£ãŸ JIT æ¤œçŸ¥æ–¹æ³•ãªã©ã«ã¤ã„ã¦ç´¹ä»‹ã—ã¾ã™ã€‚ JavaScript ã«ãŠã‘ã‚‹ä½Žãƒ¬ã‚¤ãƒ¤ãƒ¼ã®æ‰±ã„ JavaScript ã«ãŠã„ã¦ã¯ã€æŒ™å‹•ãŒæ¯”è¼ƒçš„ã—ã£ã‹ã‚Šã¨ä»•æ§˜ã«å®šã‚ã‚‰ã‚Œã¦ã„ã‚‹ãŸã‚ã«ã€ç’°å¢ƒã«ã‚ˆã‚‹æŒ¯ã‚‹èˆžã„ã®é•ã„ã¯ã‚ã¾ã‚Šç™ºç”Ÿã—ã¾ã›ã‚“ã€‚ã—ã‹ã—ã€ä½Žãƒ¬ã‚¤ãƒ¤ãƒ¼ã«é™ã‚Šã‚‹ã»ã©æŒ¯ã‚‹èˆžã„ã¯å®Ÿè£…ä¾å˜ã«ãªã‚Šã€ç’°å¢ƒå·®ãŒç™ºç”Ÿã™ã‚‹ä½™åœ°ãŒå‡ºã¦ãã¾ã™ã€‚ ä¸€ç•ª
k_oshima 2023/01/11
JavaScript
ãƒªãƒ³ã‚¯
å¦„æƒ³çš„DHHç†è§£ - Qiita
Caution ã“ã®è¨˜äº‹ã¯DHHãƒ•ã‚¡ãƒ³ã®å¦„æƒ³ã«ã‚ˆã‚‹ã‚·ãƒŠãƒªã‚ªãŒå¤šåˆ†ã«å«ã¾ã‚Œã¾ã™ã€‚ ã¨ã„ã†ã‹ã»ã¨ã‚“ã©ã§ã™ã€‚ æˆã‚Šç«‹ã¡ãŒé–“é•ã£ã¦ã‚‹ã“ã¨ã‚‚å½“ç„¶ã‚ã‚‹ã‚ˆã†ã«æ€ã†ã®ã§è©±åŠåˆ†ã§èªã‚“ã§ãã ã•ã„ã€‚ ã“ã‚Œã¯ä¸€ä½“ æœ€è¿‘ã®Rails ãƒ•ãƒãƒ³ãƒˆã‚¨ãƒ³ãƒ‰ã‚„DHHã®æ´»å‹•ã«ã¯ä¸€é€£ã®æµã‚ŒãŒã‚ã‚‹ã‚ã‘ã§ã™ãŒã€ä¸€éƒ¨ãƒˆãƒ¬ãƒ³ãƒ‰ã«æ²¿ã£ã¦ãªã„éƒ¨åˆ†ãŒã‚ã‚‹æ•…ã«ãã‚ŒãŒæ±²ã‚ãªã„ã¨ã„ã†ã¨ã“ã‚ãŒã‚ã‚‹ã®ã§ã¯ã¨æ€ã„ã¾ã™ã€‚ ãã‚Œã‚‰ã®æµã‚Œã‚’è¨˜æ†¶ãŒå®šã‹ãªã†ã¡ã«ã¤ãªã„ã§è¨˜éŒ²ã—ã¦ãŠã“ã†ã¨ã„ã†è¨˜äº‹ã§ã™ã€‚ å‰æçŸ¥è˜ Railsã®ç”Ÿã¿ã®è¦ªã€Rubyist Basecamp(ç¤¾) DHHãŒCTOã‚„ã£ã¦ã‚‹ä¼šç¤¾ Basecamp(ã‚µãƒ¼ãƒ“ã‚¹) Basecamp(ç¤¾)ãŒé–‹ç™ºã—ã¦ã‚‹ãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆç®¡ç†ãƒ„ãƒ¼ãƒ« Trixã‚’é–‹ç™ºã—ã¦ãŸã‚ã‚‹æ—¥ Basecamp(ã‚µãƒ¼ãƒ“ã‚¹)ã«çµ„ã¿è¾¼ã¾ã‚Œã¦ã‚‹ãƒªãƒƒãƒãƒ†ã‚ã‚¹ãƒˆã‚¨ãƒ‡ã‚£ã‚¿ã®trixã‚’customElementsä½¿ã£ã¦é–‹ç™ºã—ã¦ãŸã‚ã‚‹æ—¥ã€DHHã¯ã‚ã‚‹ã“ã¨ã«æ°—ã¥ãã€‚
k_oshima 2021/09/22
[

rails

javascript

Basecamp

DHH
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ãƒˆãƒ©ãƒ³ã‚¹ãƒ‘ã‚¤ãƒ©ã€ŒBabelã€ã®é–‹ç™ºãƒãƒ¼ãƒ ã€ã€Œä½•ç™¾ä¸‡äººã«ã‚‚ä½¿ã‚ã‚Œã¦ã„ã‚‹ã®ã«ã€ãªãœç§ãŸã¡ã®è³‡é‡‘ã¯å°½ãã‚ˆã†ã¨ã—ã¦ã„ã‚‹ã®ã‹ï¼Ÿã€ã€‚è³‡é‡‘é›£ã«ã‚ˆã‚Šå¯„ä»˜ã‚’è¨´ãˆ
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k_oshima 2021/05/12
javascript

development
ãƒªãƒ³ã‚¯
Promise ã¨ async/await ã®ç†è§£åº¦ã‚’ã‚‚ã†1æ®µéšŽä¸Šã’ã‚‹ - Qiita
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k_oshima 2020/09/25
javascript

async

promise
ãƒªãƒ³ã‚¯
JavaScriptã§ã®ãƒ¡ãƒ‡ã‚£ã‚¢ã‚¯ã‚¨ãƒªã€matchMedia()ã®ä½¿ã„æ–¹ã‚’è§£èª¬
ãƒ¡ãƒ‡ã‚£ã‚¢ã‚¯ã‚¨ãƒªã¨è¨€ãˆã°ã€CSSã®@mediaã§ã‚¹ã‚¯ãƒªãƒ¼ãƒ³ã‚µã‚¤ã‚ºã«åˆã‚ã›ã¦æœ€é©ãªã‚¹ã‚¿ã‚¤ãƒ«ã‚’é©ç”¨ã™ã‚‹ã‚‚ã®ã‚’æ€ã„æµ®ã‹ã¹ã‚‹äººãŒå¤šã„ã¨æ€ã„ã¾ã™ã€‚JavaScriptã§å®Ÿè£…ã—ãŸã‚³ãƒ³ãƒãƒ¼ãƒãƒ³ãƒˆã€ä¾‹ãˆã°ã€ã‚¹ãƒ©ã‚¤ãƒ€ãƒ¼ãªã©ã‚’ãƒ¬ã‚¹ãƒãƒ³ã‚·ãƒ–å¯¾å¿œã«ã™ã‚‹éš›ã«ã¯JavaScriptã§ãƒ¡ãƒ‡ã‚£ã‚¢ã‚¯ã‚¨ãƒªã‚’æ‰±ã£ãŸæ–¹ãŒä¾¿åˆ©ã§ã™ã€‚ JavaScriptã§ã®ãƒ¡ãƒ‡ã‚£ã‚¢ã‚¯ã‚¨ãƒªã€matchMedia()ã®ä½¿ã„æ–¹ã‚’ç´¹ä»‹ã—ã¾ã™ã€‚ Working with JavaScript Media Queries by Marko Ilic ä¸‹è¨˜ã¯å„ãƒã‚¤ãƒ³ãƒˆã‚’æ„è¨³ã—ãŸã‚‚ã®ã§ã™ã€‚ â€»å½“ãƒ–ãƒã‚°ã§ã®ç¿»è¨³è¨˜äº‹ã¯ã€å…ƒã‚µã‚¤ãƒˆæ§˜ã«ãƒ©ã‚¤ã‚»ãƒ³ã‚¹ã‚’å¾—ã¦ç¿»è¨³ã—ã¦ã„ã¾ã™ã€‚ ã¯ã˜ã‚ã« matchMedia()ã®ä½¿ã„æ–¹ æ¡ä»¶ã®å¤‰åŒ–ã‚’ç¶™ç¶šçš„ã«ãƒã‚§ãƒƒã‚¯ã™ã‚‹æ–¹æ³• æ˜”ãªãŒã‚‰ã®æ–¹æ³• ã¾ã¨ã‚ ã¯ã˜ã‚ã« ãƒ¡ãƒ‡ã‚£ã‚¢ã‚¯ã‚¨ãƒªã¨è¨€ã‚ã‚Œã¦æœ€åˆã«æ€ã„æµ®ã‹ã¶ã®ã¯ä½•ã§ã™ã‹ï¼Ÿ ãŠãã‚‰ãã€ä¸‹è¨˜ã®ã‚ˆã†ãªCSSã§ã—ã‚‡
k_oshima 2020/09/17
JavaScript

CSS

media queries
ãƒªãƒ³ã‚¯
GatsbyJSã®Incremental Buildsã§é™çš„ã‚µã‚¤ãƒˆåˆ¶ä½œãŒåŠ‡çš„ã«å¤‰ã‚ã‚‹ - hiro08gh
ã“ã‚“ã«ã¡ã¯hiro08ã§ã™ã€‚ å…ˆæ—¥GatsbyJSã®ãƒ–ãƒã‚°ã§ã€Incremental Buildsã®ãƒªãƒªãƒ¼ã‚¹ãŒã‚¢ãƒŠã‚¦ãƒ³ã‚¹ã•ã‚Œã¾ã—ãŸã€‚ã“ã‚Œã¯ã‚³ãƒ³ãƒ†ãƒ³ãƒ„ã«å¤‰æ›´ãŒã‚ã£ãŸå ´åˆã€å¤‰æ›´éƒ¨åˆ†ã®ã¿ã‚’å†ãƒ“ãƒ«ãƒ‰ã™ã‚‹ä»•çµ„ã¿ã§ã™ã€‚ä»Šå¾Œã®Jamstack/é™çš„ã‚µã‚¤ãƒˆåˆ¶ä½œã‚’åŠ‡çš„ã«å¤‰ãˆã‚‹éžå¸¸ã«å¼·åŠ›ãªæ©Ÿèƒ½ã§ã™ã€‚ è£œè¶³ ç¾æ™‚ç‚¹ã§ã¯Gatsby Cloudã®Professionalãƒ—ãƒ©ãƒ³ã§ä½¿ãˆã‚‹æ©Ÿèƒ½ã§ã™ã€‚ã¾ã ã¾ã è©¦ç”¨æ©Ÿèƒ½ã¨ã„ã£ãŸæ„Ÿã˜ã§ã™ã€‚ www.gatsbyjs.org ã„ã¾ã¾ã§ã®èª²é¡Œç‚¹ ã„ã¾ã¾ã§ã®GatsbyJSã«ã¯èª²é¡ŒãŒã‚ã‚Šã¾ã—ãŸã€‚ãã‚Œã¯ã€å¤‰æ›´ãŒã‚ã£ãŸå ´åˆã™ã¹ã¦ã®ãƒšãƒ¼ã‚¸ã‚’å†ãƒ“ãƒ«ãƒ‰ã—ã¦ã—ã¾ã†ã“ã¨ã§ã™ã€‚å°‘ãªã„ãƒšãƒ¼ã‚¸æ•°ã®å ´åˆã‚ã¾ã‚Šå½±éŸ¿ãªã„ã§ã™ãŒã€æ•°åƒã‹ã‚‰æ•°ä¸‡ãƒšãƒ¼ã‚¸ä»¥ä¸Šã®å¤§è¦æ¨¡ãªé™çš„ã‚µã‚¤ãƒˆã§ã¯ã€ ä¸€éƒ¨ã®å¤‰æ›´ã§ã‚‚ã™ã¹ã¦ã®ãƒšãƒ¼ã‚¸ãŒå†ãƒ“ãƒ«ãƒ‰ã•ã‚Œã¦ã—ã¾ã†ãŸã‚ã€ãƒ“ãƒ«ãƒ‰åŠ¹çŽ‡ãŒæ‚ªã„(CI/CDã‚’ä½¿ã£ã¦ã‚‹å ´åˆæ¶ˆè²»é‡ãŒå¤šããªã£ã¦ã—ã¾ã†) ãƒ“ãƒ«ãƒ‰
k_oshima 2020/04/30
ã‚¤ãƒ³ã‚¯ãƒ«ãƒ¡ãƒ³ã‚¿ãƒ«ãƒ“ãƒ«ãƒ‰

GatsbyJS

JavaScript
ãƒªãƒ³ã‚¯
GitHub - tc39/proposal-temporal: Provides standard objects and functions for working with dates and times.
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k_oshima 2019/12/02
JavaScript

Temporal
ãƒªãƒ³ã‚¯
Temporal
Temporal Update 2019-10-02 Process & Progress Objects & Decisions Actions & Roadmap Temporal Process & Progress Stage-1: specify a design Stage-2: validate the design Stage-3: implement the specification Stage-4: mandate a the specification Temporal Process & Progress Stage-2 Progress create polyfill publish polyfill (github & npm) invite feedback/reviews (bloomberg, google, moment, luxon, tag, pu
k_oshima 2019/12/02
JavaScript

temporal
ãƒªãƒ³ã‚¯
Slack platform overview | Slack Developer Docs
To jump straight into developing your own Slack app, follow our Quickstart. You can get started right now. Hello there, fellow developer! ðŸ‘‹ Welcome to the Slack API documentation, the place where ideas turn into interactive apps, workflows get automated, and Slack becomes the platform that powers your workday. With new tools for building AI agents and intelligent apps, our documentation on APIs,
k_oshima 2019/07/10
JavaScript

Slack

bot

Bolt
ãƒªãƒ³ã‚¯
GitHub - adam-golab/react-developer-roadmap: Roadmap to becoming a React developer
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k_oshima 2019/05/21
react.js

JavaScript
ãƒªãƒ³ã‚¯
GitHub - flaviocopes/vue-developer-roadmap: Roadmap to becoming a Vue.js developer in 2019
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k_oshima 2019/05/21
vue.js

JavaScript
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async/awaitã‚’ä½¿ã£ãŸãƒ¢ãƒ€ãƒ³ãªéžåŒæœŸå‡¦ç† - Qiita
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k_oshima 2017/12/26
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k_oshima 2017/12/25
IME

JavaScript

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event

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