SOURCE

var MyModules = (function Manager() {
    var modules = {};

    function define(name, deps, impl) {
        for(var i = 0; i < deps.length; i++) {
            deps[i] = modules[deps[i]];
        }
        modules[name] = impl.apply(impl, deps);
    }

    function get(name) {
        return modules[name];
    }

    return {
        define: define,
        get: get,
    }
})();

MyModules.define('bar', [], function() {
    function hello(who) {
        return "let me introduce: " + who;
    }

    return {
        hello: hello
    }
})

MyModules.define('foo', ['bar'], function(bar) {
    var hungry = 'yang';

    function awesome() {
        console.log(bar.hello(hungry).toUpperCase());
    }
    return {
        awesome: awesome
    }
});

var bar = MyModules.get("bar");
var foo = MyModules.get("foo");
console.log(bar.hello('bubble'))
foo.awesome();