web api instance method
WebGLRenderingContext: isShader() method
Available in workers
The WebGLRenderingContext.isShader() method of the WebGL API returns true if the
passed WebGLShader is valid, false otherwise.
Syntax
isShader(shader)
Parameters
shader- : A
WebGLShaderto check.
- : A
Return value
A GLboolean indicating whether or not the shader is valid.
Examples
Checking a shader
const canvas = document.getElementById("canvas");
const gl = canvas.getContext("webgl");
const shader = gl.createShader(gl.VERTEX_SHADER);
// …
gl.isShader(shader);
Specifications
SpecificationsStandards references are available on the canonical MDN page.
Browser compatibility
Browser compatibilityCompatibility data is available on the canonical MDN page.