The EXT_disjoint_timer_query.isQueryEXT() method of the WebGL API returns true if the passed object is a WebGLQuery object.
GLBoolean ext.isQueryEXT(query);
queryWebGLQuery object to test.A GLboolean indicating whether the given object is a WebGLQuery object (true) or not (false).
var ext = gl.getExtension('EXT_disjoint_timer_query');
var query = ext.createQueryEXT();
// ...
ext.isQueryEXT(query);
| Specification | Status | Comment |
|---|---|---|
| EXT_disjoint_timer_query The definition of 'EXT_disjoint_timer_query' in that specification. | Working Draft | Initial definition. |
| Desktop | ||||||
|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | |
| Basic support | 47 — 65
|
No | 51 — 63
|
? | ? | ? |
| Mobile | |||||||
|---|---|---|---|---|---|---|---|
| Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
| Basic support | ? | 47 — 65
|
No | No | ? | ? | 5.0 |
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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