Web/API/EXT disjoint timer query/isQueryEXT

The EXT_disjoint_timer_query.isQueryEXT() method of the WebGL API returns true if the passed object is a WebGLQuery object.

Syntax

GLBoolean ext.isQueryEXT(query);

Parameters

query: A WebGLQuery object to test.

Return value

A GLboolean indicating whether the given object is a WebGLQuery object (true) or not (false).

Examples

var ext = gl.getExtension('EXT_disjoint_timer_query');
var query = ext.createQueryEXT();

// ...

ext.isQueryEXT(query);

Specifications

Specification	Status	Comment
EXT_disjoint_timer_queryThe definition of 'EXT_disjoint_timer_query' in that specification.	Working Draft	Initial definition.

Browser compatibility

The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`isQueryEXT`	Chrome No support 47 — 65 Notes' No support 47 — 65 Notes' Notes' Removed due to the GLitch exploit.	Edge No support No	Firefox No support 51 — 59 Notes' No support 51 — 59 Notes' Notes' Removed due to the GLitch exploit.	IE No support No	Opera No support 34 — 52 Notes' No support 34 — 52 Notes' Notes' Removed due to the GLitch exploit.	Safari No support No	WebView Android No support 47 — 65 Notes' No support 47 — 65 Notes' Notes' Removed due to the GLitch exploit.	Chrome Android No support 47 — 65 Notes' No support 47 — 65 Notes' Notes' Removed due to the GLitch exploit.	Firefox Android No support No	Opera Android No support 34 — 47 Notes' No support 34 — 47 Notes' Notes' Removed due to the GLitch exploit.	Safari iOS No support No	Samsung Internet Android No support 5.0 — 9.0 Notes' No support 5.0 — 9.0 Notes' Notes' Removed due to the GLitch exploit.

Legend

No support: No support
See implementation notes.': See implementation notes.