Awesome. I do notice a gigantic warning on MDN to not rely on this behavior, though: https://developer.mozilla.org/en/JavaScript/Reference/Global...

In p.js (github.com/jayferd/pjs), I used this pattern/workaround:

    var Breakfast = function(args) {
      if (!(this instanceof Breakfast)) return new Breakfast(arguments);
      if (args && typeof this.init === 'function') this.init.apply(this, args);
    }

So these would be equivalent:

    Breakfast('bacon', 'eggs')
    new Breakfast(['bacon', 'eggs'])

Whereas `new Breakfast` would return an "uninitialized" object as in Object.create.