WebGLRenderingContext: isShader() method
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
Note: This feature is available in Web Workers.
The WebGLRenderingContext.isShader() method of the WebGL API returns true if the
passed WebGLShader is valid, false otherwise.
Syntax
js
isShader(shader)
Parameters
shader-
A
WebGLShaderto check.
Return value
A GLboolean indicating whether or not the shader is valid.
Examples
Checking a shader
js
const canvas = document.getElementById("canvas");
const gl = canvas.getContext("webgl");
const shader = gl.createShader(gl.VERTEX_SHADER);
// …
gl.isShader(shader);
Specifications
| Specification |
|---|
| WebGL Specification # 5.14.9 |
Browser compatibility
| desktop | mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
isShader | ||||||||||||