no_introduction.js

(function (global) {
    var Class = {};
    var app = {};
    
    function fluent(obj, fn) {
        return function () {
            fn.apply(obj, arguments);
            return obj;
        }
    }
    function instantiate(fn, args, callback) {
        return callback(new (fn.bind.apply(fn, [null].concat(args))));
    }
    function augment(obj, prop, val){
        obj[prop] = val;
    }
    
    app.get = function (name, args, callback) {
        return instantiate(Class[name], args, callback);
    };
    
    app.fluent = fluent;
    app.add = fluent(app, function (prop, val) {
        augment(Class, prop, val);
    });
    app.proto = fluent(app, function (name, prop, val) {
        augment(Class[name].prototype, prop, val);
    });
    global.app = app;
}(this));
 
app.add("Person", function (name) {
    this.name = name;
}).proto("Person", "say", function () {
    console.log(this.name);
}).get("Person", ["Bob"], function (person) {
    person.say();
});