WebGL2RenderingContext: isQuery() method
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2021.
Note: This feature is available in Web Workers.
The WebGL2RenderingContext.isQuery() method of the WebGL 2 API returns true if the
passed object is a valid WebGLQuery object.
Syntax
js
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.
js
const query = gl.createQuery();
// …
gl.isQuery(query);
Specifications
| Specification |
|---|
| WebGL 2.0 Specification # 3.7.12 |
Browser compatibility
| desktop | mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
isQuery | ||||||||||||