WebGL2RenderingContext: isQuery() method

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

See also