Note: This feature is available in Web Workers.
The WebGL2RenderingContext.isSampler() method of the WebGL 2 API returns true if the passed object is a valid WebGLSampler object.
isSampler(sampler)samplerA WebGLSampler object to test.
A GLboolean indicating whether the given object is a valid WebGLSampler object (true) or not (false).
gl must be a WebGL2RenderingContext. WebGLSampler objects are not available in WebGL 1.
const sampler = gl.createSampler();
// …
gl.isSampler(sampler);