ES2021 features list
ES2021 Features! Logical Assignment Operators (&&= ||= ??=) Numeric Separators (1_000) Promise.any & AggregateError String.prototype.replaceAll WeakRefs & FinalizationRegistry Objects Logical Assignment Operators Logical Assignment Operators 📖. //"Or Or Equals" x ||= y; x || (x = y); // "And And Equals" x &&= y; x && (x = y); // "QQ Equals" x ??= y; x ?? (x = y);const updateID = user => { // We c
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JavaScriptã®æœ€æ–°ä»•æ§˜ã‚’ã¿ã‚“ãªã§èªã‚‚ã†ï¼ 『ECMA-262 Edition 5.1ã‚’èªã‚€ã€ç™ºå£²è¨˜å¿µãƒ—レゼントã‚ャンペーンを実施ã—ã¾ã™ - Hatena Developer Blog
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ECMAScript
Future home of the ECMAScript programming language.ECMAScript Programming Language New to ECMAScript? Learn about the ECMAScript language Discover the ECMAScript community Implementing an ECMAScript engine? Read the documentation Download the ES4 reference interpreter Interested in ECMAScript Harmony? Read Brendan Eich's announcement of ECMAScript Harmony Get involved in the development of ECMAScr
The Exciting Future of Javascript - DZone
ecmascript , 6th edition might bring us fat arrow notation – douglas crockford on fat arrows function (x) { return x * x; } // becomes (x) => x * x douglas’ post concerns itself mostly with the intricacies of how this is bound to the function object and what the fat arrow notation might bring, what i see is something completely different. proper lambdas! that’s right, functions that implicitly ret
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JS Advent Calendar, オレ標準コース 1日目, id:Constellation ã§ã™. ã‚ã‚Œã‹ã‚‰1å¹´ã§ã™ã‹... å‰åŠã§, ES.nextã«å°Žå…¥ã•ã‚ŒãŸDeclarationã«ã¤ã„ã¦ã•ã£ã¨, ãã—ã¦å¾ŒåŠã§ã‚¿ã‚¤ãƒˆãƒ«ã®èª¬æ˜Žã‚’ã—ã¾ã™. ã“ã®æ–‡æ›¸ã¯, 2011/12/01ç¾åœ¨ã®ES5 Engineã®å®Ÿè£…ã¨ES.next draftã«åŸºã¥ã„ã¦ã„ã¾ã™. ã¾ãŸ, ES.nextã®æ–‡æ³•ãŒvalidã‹ã©ã†ã‹ã«ã¤ã„ã¦ã¯, parserを用æ„ã—ã¦ã‚ã‚‹ã®ã§, 是éžã”利用ãã ã•ã„. http://constellation.github.com/iv/js/es.next.html Declaration ES.nextã§ã¯æ–°ãŸã«Declarationã¨ã„ã†åŒºåˆ‡ã‚ŠãŒå…¥ã‚Š, LetDeclaration, ConstDeclaration, FunctionDeclarationãŒå°Žå…¥ã•ã‚Œã¾ã—ãŸ.
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Ecma-262.pdf (application/pdf オブジェクト)
ECMAScript® 2024 language specification 15th edition, June 2024 This Standard defines the ECMAScript 2024 general-purpose programming language. Kindly note that the normative copy is the HTML version; the PDF version has been produced to generate a printable document. This 15th edition has been prepared under the Ecma RF patent policy. Please note that for ECMAScript Edition 4 the Ecma standard nu
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