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This is an accepted version of this page This is the latest accepted revision, reviewed on 14 February 2025. High-level programming language Not to be confused with Java (programming language), Javanese script, or ECMAScript. JavaScript Screenshot of JavaScript source code Paradigm Multi-paradigm: event-driven, functional, imperative, procedural, object-oriented Designed by Brendan Eich of ...
MDN Web Docs, previously Mozilla Developer Network and formerly Mozilla Developer Center, is a documentation repository and learning resource for web developers. It was started by Mozilla in 2005 [ 2 ] as a unified place for documentation about open web standards, Mozilla's own projects, and developer guides.
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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 . ECMAScript is commonly used for client-side scripting on the World Wide Web , and it is increasingly being used for server-side applications and ...
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]
Internet Explorer was the first major browser to support extensions, with the release of version 4 in 1997. [7] Firefox has supported extensions since its launch in 2004. Opera and Chrome began supporting extensions in 2009, [8] and Safari did so the following year. Microsoft Edge added extension support in 2016. [9]
SpiderMonkey is intended to be embedded in other applications that provide host environments for JavaScript. An incomplete list follows: Mozilla Firefox, Thunderbird, SeaMonkey, and other applications that use the Mozilla application framework. Forks of Firefox including the Pale Moon, Basilisk and Waterfox web browsers. Data storage applications:
In particular, I made it possible to generate a new document by loading, e.g. javascript:'hello, world', but also (key for bookmarklets) to run arbitrary script against the DOM of the current document, e.g. javascript:alert(document.links[0].href). The difference is that the latter kind of URL uses an expression that evaluates to the undefined ...