Close with function notation

See how private and public methods are accessible from outside. Last statement will not work,  tell me why ?

 

var Inventory = function InventoryConstructor(n) {      var that = function(n)      {         title = n;         GetTitle = function()         {              return title;         };           };        var names = ['Honda', 'BMW', 'Kia', 'Toyota'];      that.FindIfCarMakeIsInList = function(m)      {          return names.indexOf(m) > -1 ;      };        that.TotalMakesWeHave = names.length;           that.AddMake = function(m)      {        if(names.indexOf(m) === -1)        {           names[names.length] = m;        }        return true;      }        return that; }('India inv');   alert('Is Acura in list ->' + Inventory.FindIfCarMakeIsInList('Acura')); alert('How many car make we have ? ' + Inventory.TotalMakesWeHave); alert('add Acura in list ->' + Inventory.AddMake('Acura')); alert('Is Acura in list ->' + Inventory.FindIfCarMakeIsInList('Acura')); alert('How many car make we have ? ' + Inventory.TotalMakesWeHave); alert(Get Title ' + Inventory.GetTitle()); // This will fail, tell me why ?

 

Thanks

Pradeep