WebGLRenderingContext: getShaderInfoLog() 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.getShaderInfoLog returns the information logfor the specifiedWebGLShader object. It contains warnings, debugging andcompile information.

A string that contains diagnostic messages, warning messages, andother information about the last compile operation. When aWebGLShaderobject is initially created, its information log will be a string of length 0.

Examples

Checking compilation messages

/* load shader source code. */gl.shaderSource(shader, shaderCode);/* compile shader source code. */gl.compileShader(shader);const message = gl.getShaderInfoLog(shader);if (message.length > 0) {  /* message may be an error or a warning */  throw message;}