WebGLRenderingContext: isProgram() 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.isProgram() method of the WebGL API returns true if the
passed WebGLProgram is valid, false otherwise.
Syntax
js
isProgram(program)
Parameters
program-
A
WebGLProgramto check.
Return value
A GLboolean indicating whether or not the program is valid.
Examples
Checking a program
js
const canvas = document.getElementById("canvas");
const gl = canvas.getContext("webgl");
const program = gl.createProgram();
// …
gl.isProgram(program);
Specifications
| Specification |
|---|
| WebGL Specification # 5.14.9 |
Browser compatibility
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