WebGL2RenderingContext.isQuery()
The WebGL2RenderingContext.isQuery() method of the WebGL 2 API returns true if the passed object is a valid WebGLQuery object.
Syntax
GLBoolean gl.isQuery(query);
Parameters
query-
A
WebGLQueryobject 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
| Specification |
|---|
| WebGL 2.0 Specification (WebGL 2.0) # 3.7.12 |
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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https://developer.mozilla.org/en-US/docs/Web/API/WebGL2RenderingContext/isQuery