This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.

This feature has been removed from the Web standards. Though some browsers may still support it, it is in the process of being dropped. Avoid using it and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.

The ScriptEngine function gets the name of the scripting language in use.




The ScriptEngine function returns "JScript", which indicates that JavaScript is the current scripting engine.


The following example illustrates the use of the ScriptEngine function:

if (window.ScriptEngine) {  

// Output: JScript


Supported in the following document modes: Quirks, Internet Explorer 6 standards, Internet Explorer 7 standards, Internet Explorer 8 standards, Internet Explorer 9 standards, Internet Explorer 10 standards, Internet Explorer 11 standards. Also supported in Store apps (Windows 8 and Windows Phone 8.1).

See also

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Contributors to this page: ExE-Boss, MohamedAlFahim, khorne3, erikadoyle
Last updated by: ExE-Boss,