Getters/Setters

index.js

var object = {

  _property: 10,

  // Getter/Setter
  property: function(value) {
    if (typeof (value) === 'undefined') {
      return this._property;
    }
    this._property = value;
    return this;
  },

  // getProperty, setProperty is so Java

  greet: function() {
    return "Hello " + this._property + "!";
  }

};

// no arguments acts like a getter
console.log( object.property() );  // prints 10
// with an argument acts like a setter
object.property(20);               // sets   20
console.log( object.property() );  // prints 20

// setters are chainable
console.log( object.property('Stan').greet() );  // prints 'Hello Stan!'