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
WebGLShader
to 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
BCD tables only load in the browser