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WebGL2RenderingContext: getQueryParameter() method

The WebGL2RenderingContext.getQueryParameter() method of the WebGL 2 API returns parameter information of a WebGLQuery object.

getQueryParameter(query, pname)

A GLenum specifying which information to return. Possible values:

gl.QUERY_RESULT: Returns a GLuint containing the query result.
gl.QUERY_RESULT_AVAILABLE: Returns a GLboolean indicating whether or not a query result is available.

Depends on the pname parameter, either a GLuint or a GLboolean.

const query = gl.createQuery();
gl.beginQuery(gl.ANY_SAMPLES_PASSED, query);

const result = gl.getQueryParameter(query, gl.QUERY_RESULT);

Specification
WebGL 2.0 Specification # 3.7.12

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	WebView Android	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet
`getQueryParameter`	56	79	51	No	43	15	58	58	51	43	15	7.0