JavaScript Modules - requireJS

one.js

define(
    //The name of this module
    "one",

    //The function to execute when all dependencies have loaded. The arguments
    //to this function are the array of dependencies mentioned above.	
	function(Three) {

		function One () {
		  this.stuff = [];
		}

		One.prototype = new Three();

		console.log("one.js");
		//return the One constructor function so it can be used by other modules.
		return One;	
    }
);

require-main-order.js

require(["order!one", "order!two", "order!three"], function() {
	console.log('load complete');
});

three.js

define(
    //The name of this module
    "three",

    //The function to execute when all dependencies have loaded. The arguments
    //to this function are the array of dependencies mentioned above.
	function (Two) {

	    function Three () {
	      this.stuff = [];
	    }

	    // console.log(Two);
	    //This will now work
	    Three.prototype = new Two();

            console.log("three.js");
	    //return the Two constructor function so it can be used by other modules.
	    return Three;
        
    }
);

two.js

define(
    //The name of this module
    "two",

    //The function to execute when all dependencies have loaded. The arguments
    //to this function are the array of dependencies mentioned above.
	function (One) {

            function Two () {
	      this.stuff = [];
	    }

	    //This will now work
	    // console.log(One);
	    Two.prototype = new One();

	    console.log("two.js");
	    //return the Two constructor function so it can be used by other modules.
	    return Two;
    }
);