WebGLRenderingContext: isProgram() method

Available in workers

The WebGLRenderingContext.isProgram() method of the WebGL API returns true if the passed WebGLProgram is valid, false otherwise.

Syntax

isProgram(program)

Parameters

• program
  • : A WebGLProgram to check.

Return value

A GLboolean indicating whether or not the program is valid.

Examples

Checking a program

const canvas = document.getElementById("canvas");
const gl = canvas.getContext("webgl");
const program = gl.createProgram();

// …

gl.isProgram(program);

Specifications

Browser compatibility

See also

• createProgram()
• deleteProgram()
• linkProgram()
• useProgram()
• validateProgram()
• getProgramParameter()
• getProgramInfoLog()