JavaScript

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A Javascript file (JS) is writen in the Javascript language and is a source code file that is commonly run on the web (client-side) to deliver processed and dynamic content to users on the web. Variants of Javascript can increasingly be run on the server to provide different capabilities and other performance benefits. Javascript itself is based on the standard ECMAScript (which at time of writing is on its 14th edition: https://ecma-international.org/publications-and-standards/standards/ecma-262/). Developers will often adopt libraries or frameworks to ease the burden of writing commonly needed components and features of Javascript based scripting; such libraries and frameworks include jQuery, React, Typescript, and NodeJS. Understanding tne technical layers of an implementation featuring Javascript will often be important to understanding how to run the complex objects that the scripts form a part of

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• SciTEOpen sourcereads and writes · Historical Permission Notice and Disclaimer
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• ActiveState KomodoOpen sourcereads · Mozilla Public License, version 1.1
• Artistic StyleOpen sourcereads · GNU Lesser General Public License / GNU Lesser General Public License, version 3.0 or later
• Cloud9 IDEOpen sourcereads · GNU General Public License, version 3.0 / freeware
• JasmineOpen sourcereads · MIT License
• jEditOpen sourcereads · GNU General Public License, version 2.0 or later
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• Light TableOpen sourcereads · MIT License
• mkdOpen sourcereads · European Union Public Licence
• Mongrel2Open sourcereads · 3-clause BSD License
• Mozilla SkywriterOpen sourcereads · Mozilla Public License, version 1.1
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• PygmentsOpen sourcereads · 2-clause BSD License
• Q1122464Open sourcereads · GNU General Public License, version 2.0 or later
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Sources

• File Formats Wiki
• PRONOM x-fmt/423
• Wikidata Q5924007

From Just Solve the File Format Problem (File Formats Wiki), PRONOM, Wikidata. Updated 2026-10-24.

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