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JavaScript (/ ˈdʒɑːvəskrɪpt /), often abbreviated as JS, is a programming language and core technology of the Web, alongside HTML and CSS. 99% of websites use JavaScript on the client side for webpage behavior. [10] Web browsers have a dedicated JavaScript engine that executes the client code.
Compiler. License. MIT [3] Website. babeljs.io. Babel is a free and open-source JavaScript transcompiler that is mainly used to convert ECMAScript 2015+ (ES6+) code into backwards-compatible JavaScript code that can be run by older JavaScript engines. It allows web developers to take advantage of the newest features of the language.
SpiderMonkey: A JavaScript engine in Mozilla Gecko applications, including Firefox. The engine currently includes the IonMonkey compiler and OdinMonkey optimization module, has previously included the TraceMonkey compiler (first JavaScript JIT) and JägerMonkey. JavaScriptCore: A JavaScript interpreter and JIT originally derived from KJS.
The first JavaScript engine was created by Brendan Eich in 1995 for the Netscape Navigator web browser. [5] It was a rudimentary interpreter for the nascent language Eich invented. [6] (. This evolved into the SpiderMonkey engine, still used by the Firefox browser. [5]) Google debuted its Chrome browser in 2008, with the V8 JavaScript engine ...
V8 (JavaScript engine) V8 is a JavaScript and WebAssembly engine developed by Google for its Chrome browser. [1][4] V8 is free and open-source software that is part of the Chromium project and also used separately in non-browser contexts, notably the Node.js runtime system. [1]
TypeScript may be used to develop JavaScript applications for both client-side and server-side execution (as with Node.js, Deno or Bun). Multiple options are available for transpilation. The default TypeScript Compiler can be used, [7] or the Babel compiler can be invoked to convert TypeScript to JavaScript.
mixed mode: PHP + HTML + JavaScript + CSS, single-mode: PHP, Javascript, CSS, XML; extensible Hundreds of languages Syntax checking HTML, CSS, JavaScript (using JSHint) Some No JavaScript (using JSLint) No No HTML, JavaScript (using JSLint) HTML, CSS, JavaScript, TypeScript Tab support Yes Yes Yes Yes Some Yes Yes Yes Indent, new line keeps level
t. e. A source-to-source translator, source-to-source compiler (S2S compiler), transcompiler, or transpiler[1][2][3] is a type of translator that takes the source code of a program written in a programming language as its input and produces an equivalent source code in the same or a different programming language.