WebGL2RenderingContext.isQuery()

The WebGL2RenderingContext.isQuery() method of the WebGL 2 API returns true if the passed object is a valid WebGLQuery object.

query

A WebGLQuery object to test.

A GLboolean indicating whether the given object is a valid WebGLQuery object (true) or not (false).

gl must be a WebGL2RenderingContext. WebGLQuery objects are not available in WebGL 1.

var query = gl.createQuery();

// ...

gl.isQuery(query);

• WebGLQuery