text: /**
   * Set up the `Person` constructor to turn an options object
   * into instance properties, like `name`, `age`, `gender`, etc.
   */
  function Person () {
  }
  
  Person.prototype.walk = function () {
    if (!this.walking) {
      console.log(this.name + ' walks.');
      this.walking = true;
    }
  };
  
  Person.prototype.stop = function () {
    if (this.walking) {
      console.log(this.name + ' stops walking.');
      this.walking = false;
    }
  };
  
  /**
   * Add another prototype method
   */
  
  /**
   * Creates some Person instances and have them walk and stop
   * and whatever other methods you've added
   *
   * var person = new Person({ name: 'Brendan Eich' }); 
   */
  
  
  /*
  
  function Developer () {
  }
  // `Developer` inherits from `Person`s prototype
  Developer.prototype = new Person();
  Developer.prototype.code = function () {
    console.log(this.name + ' is coding');
  };
  
  */
  