The WebGLRenderingContext.isProgram() method of the WebGL API returns true if the passed WebGLProgram is valid, false otherwise.
WebGLRenderingContext: isProgram() method
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
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | ||
isProgram |
9 | 12 | 4 | 12 | 5.1 | 25 | 4 | 12 | 8 | 1.5 | 4.4.3 | |
See also
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https://developer.mozilla.org/en-US/docs/Web/API/WebGLRenderingContext/isProgram