Beyond `typeof` and `instanceof`: simplifying dynamic type checks
Beyond typeof and instanceof: simplifying dynamic type checks This blog post describes a technique for making instanceof applicable to more values (on the right-hand side). Specifically, for primitive values. Background: typeof vs. instanceof  # In JavaScript, you have to choose when it comes to checking the type of a value. The rough rule of thumb is: typeof checks if a value is an element of a p
Parsing JavaScript - better lazy than eager?
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Chromium policy on JavaScript dialogs  | Blog  | Chrome for Developers
History of JavaScript dialogs JavaScript was introduced in 1995, and in the very first version of JavaScript were methods on the window object named alert(), confirm(), and prompt(). While they fit into the JavaScript of the time, their synchronous API is problematic for modern browsers. Because the JavaScript engine needs to pause until a user response is obtained, the JavaScript dialogs are app-
JavaScript ã«ãŠã‘ã‚‹æ–‡å—コードã¨ã€Œæ–‡å—æ•°ã€ã®æ•°ãˆæ–¹ | blog.jxck.io
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JavaScript preprocessing/precompilation
Problem: How can we preprocess JavaScript (at build-time or on the server-side) so engines like V8 don't have to spend as much time in Parse? This is a topic that involves generating either bytecode or a bytecode-like-abstraction that an engine would need to accept. For folks that don't know, modern web apps typically spend a lot longer in Parsing & Compiling JS than you may think. Yoav: This can
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一ã‹ã‚‰å§‹ã‚ã‚‹JavaScriptユニットテスト - Hatena Developer Blog
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ゼãƒã‹ã‚‰å§‹ã‚ã‚‹JavaScript生活 - Qiita
（訳者注: ã“ã‚Œã¯ã€JavaScript Stack from Scratchを翻訳ã—ã€ã¾ã¨ã‚ã¦èªã‚るよã†ã«1ファイルã«ã—ãŸã‚‚ã®ã§ã™ã€‚å…ƒã®ç¿»è¨³ã¨å„種ファイルã«ã¤ã„ã¦ã¯ã€æ—¥æœ¬èªžè¨³forkリãƒã‚¸ãƒˆãƒªã‚’å‚ç…§ã—ã¦ãã ã•ã„。ã¾ãŸã€åŽŸæ–‡ãŒæ´»ç™ºã«æ›´æ–°ã•ã‚Œã¦ã„ã‚‹ãŸã‚ã€è¨³æ–‡ã‚‚追従ã—ã¦æ›´æ–°ã•ã‚Œã¾ã™ã€‚ã”了承ãã ã•ã„。） ゼãƒã‹ã‚‰å§‹ã‚ã‚‹JavaScript生活 モダンJavaScriptスタックãƒãƒ¥ãƒ¼ãƒˆãƒªã‚¢ãƒ«ã€ã‚¼ãƒã‹ã‚‰å§‹ã‚ã‚‹JavaScript生活ã¸ã‚ˆã†ã“ã。 âš ï¸ï¸ ã“ã®ãƒãƒ¥ãƒ¼ãƒˆãƒªã‚¢ãƒ«ã®ãƒ¡ã‚¸ãƒ£ãƒ¼ã‚¢ãƒƒãƒ—デート版を3月åˆæ—¬ã«å…¬é–‹ã™ã‚‹äºˆå®šã§ã™ã€‚ã”期待下ã•ã„! より詳ã—ã(英語). ã“ã‚Œã¯JavaScriptスタックを使ã„始ã‚ã‚‹ãŸã‚ã®æœ€çŸæœ€é€Ÿã®ã‚¬ã‚¤ãƒ‰ã§ã™ã€‚ã“ã®ã‚¬ã‚¤ãƒ‰ã¯ä¸€èˆ¬çš„ãªãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã®çŸ¥è˜ã¨JavaScriptã®åŸºç¤Žã‚’å‰æã¨ã—ã¦ã„ã¾ã™ã€‚ã“れら全ã¦ã®ãƒ„ールを一緒ã«ã¤ãªãŽåˆã‚ã›ã‚‹ã“ã¨ã«ãƒ•ã‚©ãƒ¼ã‚«ã‚¹ã—ã¦ãŠã‚Šã€å„ツールã«ã¤
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JavaScript Plugin Architectureã¨ã„ã†ãƒ—ラグインè¨è¨ˆã«ã¤ã„ã¦å¦ã¶ç„¡æ–™ã®é›»å書ç±ã‚’書ã„ãŸ
JavaScript Plugin Architectureã¨ã„ã†JavaScriptã®ãƒ—ラグインè¨è¨ˆã«ã¤ã„ã¦ã®é›»å書ç±ã‚’書ãã¾ã—ãŸã€‚ ã“ã®æ›¸ç±ã¯JavaScriptã®ãƒ©ã‚¤ãƒ–ラリやツールã«ãŠã‘るプラグインアーã‚テクãƒãƒ£ã«ã¤ã„ã¦è¦‹ã¦ã„ã事を目的ã¨ã—ãŸã‚‚ã®ã§ã™ã€‚ 以下ã®å½¢å¼ã§èªã‚€ã“ã¨ãŒã§ãã¾ã™ã€‚ Web版 PDFå½¢å¼ ePubå½¢å¼ Mobiå½¢å¼ GitHub上ã«ã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ã‚‚公開ã•ã‚Œã¦ã„ã‚‹ã§ã®ã§ç›´æŽ¥Markdownファイルをèªã‚€ã“ã¨ã‚‚ã§ãã¾ã™ã€‚ Markdownよりã¯Web版ã®æ–¹ãŒè¦‹ã‚„ã™ã„ã®ã§ãã¡ã‚‰ã‚’オススメã—ã¾ã™ã€‚ Twitterã®ãƒãƒƒã‚·ãƒ¥ã‚¿ã‚°ã¯#js_plugin_book æ›´æ–°æƒ…å ±ã¯RSSやリリースノートã‹ã‚‰è¦‹ã‚‹ã“ã¨ãŒã§ãã¾ã™ã€‚ v1.0.0 最åˆã«æ›¸ãã¨æ±ºã‚ãŸãƒ—ラグインアーã‚テクãƒãƒ£ãŒæƒã£ãŸã®ã§1.0.0ã¨ã—ã¦ãƒªãƒªãƒ¼ã‚¹ã—ã¾ã—ãŸã€‚ JavaScript Promiseã®æœ¬ã®æ™‚ã¨åŒã˜ãã€ç¶™
pseudocorta: Monads, promises, arrays in Javascript
In this article I'll try to explain what is a Monad by developing an intuition based on commonly used patterns and objects, like arrays and promises. Lets start by analyzing a familiar data type: Arrays Arrays Map Lets say we have several useful functions that operate on numbers and return also numbers as their result; for example: var square = function (i) { return i*i }, sum1 = function (i) { re
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#child_process_sushiã§æœ€è¿‘ã‚„ã£ã¦ãŸJavaScriptã®è¨è¨ˆã®è©±ã‚’ã—ã¦ããŸã€‚ Almin.js | JavaScriptアーã‚テクãƒãƒ£ Fluxã¨ã‹ã§ä¸ŠåŠåˆ†ã¯çš†ã‚„るよã†ã«ãªã£ãŸã‘ã©ã€ãƒ‰ãƒ¡ã‚¤ãƒ³ãƒ¢ãƒ‡ãƒ«ã¨ã‹Fluxã®å ´åˆã«ãƒ“ジãƒã‚¹ãƒã‚¸ãƒƒã‚¯ã¨ã‹ã‚’ã©ã“ã«æ›¸ãã¨ã‹ã¯ã¾ã 未æˆç†Ÿãªæ°—ãŒã—ã¦ã„ã‚‹ã®ã§ã€ãã®ãƒ‘ターンを考ãˆã¦ã¦Almin.jsã¨ã„ã†ã®ã‚’書ã„ãŸã¨ã„ã†è©±ã‚’ã—ãŸã€‚ Almin自体ã¯å¤§ã—ãŸå®Ÿè£…ã§ã¯ãªã„ã®ã§ã€ã‚µãƒ³ãƒ—ルã¨ã‹ãƒ‰ã‚ュメントã¨ã—ã¦ãƒ‘ターンã«ã¤ã„ã¦å¦ã¹ã‚‹ã‚‚ã®ã‚’書ã„ã¦ã„ããŸã„イメージ。(ã“ã®ã‚¢ãƒ¼ã‚テクãƒãƒ£è©±è‡ªä½“ã¯ã€è‰²ã€…ãªè¨€èªžã§ç¹°ã‚Šè¿”ã—ã‚„ã£ã¦ã¯è¨€èªžãŒå»ƒã‚Œã¦ã€ãƒ‘ターンãŒã¡ã‚‡ã£ã¨é•ã†å½¢ã§æ®‹ã‚‹ã¨ã„ã†ã®ã‚’ç¹°ã‚Šè¿”ã—ã¦ã„ã‚‹ by @t_wada) JavaScriptã§ã‚‚ウェブアプリやElectronã§ã®ã‚¢ãƒ—リã®ã‚ˆã†ãªã€APIã‚’å©ã„ã¦è¡¨ç¤ºã—ã¦çµ‚ã‚ã‚Šã˜ã‚ƒãªãã¦ã€ãƒ‰ãƒ¡ã‚¤ãƒ³ãƒ¢ãƒ‡ãƒ«ã®ç”Ÿå˜æœŸé–“ãŒé•·ã„ã‚‚ã®ãŒ
t_wadaã•ã‚“ãŒæ案ã™ã‚‹JavaScript速習コースを実際ã«å±¥ä¿®ã—ã¦ã¿ãŸ - WEB SALAD
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Javascript ES6 function with required arguments example
GitHub - ai/size-limit: Calculate the real cost to run your JS app or lib to keep good performance. Show error in pull request if the cost exceeds the limit.
V8 puzzle | victor felder
図ã§ç†è§£ã™ã‚‹JavaScriptã®ãƒ—ãƒãƒˆã‚¿ã‚¤ãƒ—ãƒã‚§ãƒ¼ãƒ³ - Qiita
JavaScript ã® parseInt ã§å°æ•°ã‚’æ•´æ•°ã«å¤‰æ›ã—よã†ã¨ã—ã¦ã¯ã¾ã‚‹
GitHub - domenic/zones: Former home of the zones proposal for JavaScript
FusionCharts Free
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