chaining-functions.js

(function(){
    'use strict';

    var X = function (val) {
      console.log('instance created');
      this.name = val;
    };


    X.prototype.foo = function() {
    	this.name += ' +foo';
    	return this;
    };

    X.prototype.bar = function() {
    	this.name += ' +bar';
    	return this;
    };

    X.prototype.toString = function() {
    	return this.name;
    };


    var y = new X('testing');

    console.log(y.foo().foo().bar());
    
})();