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.
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
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