It has dynamic typing, prototype-based object-orientation, and first-class functions. JavaScript is a high-level, often just-in-time compiled language that conforms to the ECMAScript standard. All major web browsers have a dedicated JavaScript engine to execute the code on users' devices. As of 2022, 98% of websites use JavaScript on the client side for webpage behavior, often incorporating third-party libraries. JavaScript ( / ˈ dʒ ɑː v ə s k r ɪ p t/), often abbreviated as JS, is a programming language that is one of the core technologies of the World Wide Web, alongside HTML and CSS. Java, Scheme, Self, AWK, HyperTalk ĪctionScript, AssemblyScript, CoffeeScript, Dart, Haxe, JS++, Opa, TypeScript publications-and-standards /standards /ecma-262 /
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