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EXT_disjoint_timer_query: isQueryEXT() method

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

Syntax

js

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

js

const ext = gl.getExtension("EXT_disjoint_timer_query");
const query = ext.createQueryEXT();

// …

ext.isQueryEXT(query);

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
isQueryEXT
70Only supported on macOS.
47–65Removed due to the GLitch exploit.
79Only supported on macOS.
51–59Removed due to the GLitch exploit.
No
57Only supported on macOS.
34–52Removed due to the GLitch exploit.
No
47–65Removed due to the GLitch exploit.
47–65Removed due to the GLitch exploit.
No
34–47Removed due to the GLitch exploit.
No
5.0–9.0Removed due to the GLitch exploit.

See also

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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/EXT_disjoint_timer_query/isQueryEXT