The EXT_disjoint_timer_query.isQueryEXT() method of the WebGL API returns true if the passed object is a WebGLQuery object.
EXT_disjoint_timer_query: isQueryEXT() method
Syntax
js
isQueryEXT(query)
Parameters
-
query -
A
WebGLQueryobject 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
| Specification |
|---|
| WebGL EXT_disjoint_timer_query Extension Specification |
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