dom / latest / webgl2renderingcontext / isquery.html /

WebGL2RenderingContext.isQuery()

The WebGL2RenderingContext.isQuery() method of the WebGL 2 API returns true if the passed object is a valid WebGLQuery object.

Syntax

isQuery(query)

Parameters

query

A WebGLQuery object to test.

Return value

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

Examples

gl must be a WebGL2RenderingContext. WebGLQuery objects are not available in WebGL 1.

var query = gl.createQuery();

// ...

gl.isQuery(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
isQuery
56
79
51
No
43
15
58
58
51
43
15
7.0

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/WebGL2RenderingContext/isQuery