The EXT_disjoint_timer_query.deleteQueryEXT() method of the WebGL API deletes a given WebGLQuery object.
deleteQueryEXT(query)queryA WebGLQuery object to delete.
None (undefined).
const ext = gl.getExtension("EXT_disjoint_timer_query");
const query = ext.createQueryEXT();
// …
ext.deleteQueryEXT(query);