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.
Note: This feature is available inWeb Workers.
TheWebGLRenderingContext.isProgram() method of theWebGL API returnstrue if thepassedWebGLProgram is valid,false otherwise.
Syntax
js
isProgram(program)Parameters
programA
WebGLProgramto check.
Return value
AGLboolean 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 |