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 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.

js
const query = gl.createQuery();

// …

gl.isQuery(query);

Specifications

Specification
WebGL 2.0 Specification
# 3.7.12

Browser compatibility

BCD tables only load in the browser

See also