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JavaScript. 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.
The syntax of JavaScript is the set of rules that define a correctly structured JavaScript program. The examples below make use of the log function of the console object present in most browsers for standard text output . The JavaScript standard library lacks an official standard text output function (with the exception of document.write ).
JavaScript engines are typically developed by web browservendors, and every major browser has one. In a browser, the JavaScript engine runs in concert with the rendering enginevia the Document Object Modeland Web IDLbindings.[2] However, the use of JavaScript engines is not limited to browsers; for example, the V8 engineis a core component of ...
Node.js is a cross-platform, open-source JavaScript runtime environment that can run on Windows, Linux, Unix, macOS, and more. Node.js runs on the V8 JavaScript engine, and executes JavaScript code outside a web browser . Node.js lets developers use JavaScript to write command line tools and for server-side scripting.
Website. Standards. ECMAScript ( / ˈɛkməskrɪpt /; ES) [ 1] is a standard for scripting languages, including JavaScript, JScript, and ActionScript. It is best known as a JavaScript standard intended to ensure the interoperability of web pages across different web browsers. [ 2] It is standardized by Ecma International in the document ECMA-262 .
5 Pure JavaScript/Ajax. 6 Template systems. 7 Unit testing. 8 Web-application related (MVC, MVVM) 9 Other. 10 See also. Toggle the table of contents. List of ...
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Futhark: The ECMAScript engine of the Opera web browser versions 9.50 to 10.10. InScript: An obsolete proprietary library used for iCab 2 and 3. JScript: The engine that is used in Internet Explorer for versions up to IE9, and one component of the MSHTML (Trident) browser engine. Jint: Javascript interpreter with integrated engine for .NET.