nodejs like utility method for inheritance

inherits.js

/**
 * Inherit prototype properties
 * @param {Function} ctor
 * @param {Function} superCtor
 */
_.mixin({
    inherits: (function(){
        function noop(){}
     
        function ecma3(ctor, superCtor) {
            noop.prototype = superCtor.prototype;
            ctor.prototype = new noop;
            ctor.prototype.constructor = superCtor;
        }
        
        function ecma5(ctor, superCtor) {
            ctor.prototype = Object.create(superCtor.prototype, {
                constructor: { value: ctor, enumerable: false }
            });
        }
        
        return Object.create ? ecma5 : ecma3;
    }())
});

FYI, there's a bug here (found by @Suor in CSNW/sql-bricks#54). Line 13 should be ctor.prototype.constructor = ctor; This is fixed on my fork (I also added super_ and included a performance improvement from nodejs/node-v0.x-archive@1ba2c321)

I just discovered https://github.com/isaacs/inherits, which has an identical implementation to my fork of this gist but should be preferred because it is in a github repo, is maintained and is used by browserify.