javascript - IE8 getPrototypeOf method

Question

Pretty simple:

I have code using Object.getPrototypeOf(...) to get the inherited classes of a Dojo Widget (just a JS object). Object.getPrototypeOf(...) isn't supported in IE8. I need an IE work around. Any ideas? Thanks in advance.

Answer 1

Jon Resig's polyfill works http://ejohn.org/blog/objectgetprototypeof/

I have made it even smaller

if (typeof Object.getPrototypeOf !== "function")
    Object.getPrototypeOf = "".__proto__ === String.prototype
        ? function (object) {
            return object.__proto__;
        }
        : function (object) {
            // May break if the constructor has been tampered with
            return object.constructor.prototype;
        };