KJS (software)

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Original author(s) Harri Porten
Developer(s) KDE
Initial release 2000; 17 years ago (2000)
Stable release 5.33.0 (April 8, 2017; 12 days ago (2017-04-08)) [±][1]
Preview release 5.0 beta 3 (June 5, 2014; 2 years ago (2014-06-05)) [±][2]
Written in C++
Type JavaScript engine
Website JavaScript (ECMAScript)
Main article: KDE Frameworks

KJS is KDE's ECMAScript-JavaScript engine that was originally developed for the KDE project's Konqueror web browser by Harri Porten in 2000.

On June 13, 2002, Maciej Stachowiak announced on a mailing list that Apple was releasing JavaScriptCore, a framework for Mac OS X that was based on KJS.[3] Through the WebKit project, JavaScriptCore has since evolved into SquirrelFish Extreme, a JavaScript engine that compiles JavaScript into native machine code.


  1. ^ KDE (2017-04-08). "Release of KDE Frameworks 5.33.0". Retrieved 2017-04-17. 
  2. ^ "KDE Ships Third Beta of Frameworks 5". KDE. 2014-06-05. 
  3. ^ Stachowiak, Maciej (2002-06-13). "[KDE-Darwin] JavaScriptCore, Apple's JavaScript framework based on KJS". opendarwin.org. Archived from the original on 2007-03-10. Retrieved 2015-05-13. 

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