Javascript: This example and Inheritance.

this.js

function Obj(name) {
  var that = this;
  this.name = name || "world";
  
  return {
    name : "Peter",
    greet1 : function (arg1) {
      return arg1 + this.name;
    },
    greet2 : function (arg1) {
      return arg1 + that.name;
    },
    greet3 : (function (arg1) {
      return arg1 + this.name;
    }).bind(this, "goodbye ")
  };
}

var x = new Obj();
console.log(x.greet1("hello "));
console.log(x.greet2("hello "));
//console.log(x.greet3()); */