Question

In Chrome, open your JavaScript console and you will find WebGLActiveInfo as a global variable. I’ve tried looking for documentation on this function but nothing comes up.

Naively calling it will produce a TypeError: Illegal constructor, which is frustrating because it’s a black box:

function WebGLActiveInfo() { [native code] }

What does this function do? How can I use it?

Answer 1

It’s not a function, it’s the name of a native Object. Same as WebGLRenderingContext, WebGLTexture, Blob, or XMLHTTPRequest. Type any of those and you’ll get the same function signature.

WebGLActiveInfo objects are returned from gl.getActiveUniform and gl.getActiveAttrib