[removed] final / immutable global variables?

Question

I think I know the answer but... is there any way to prevent a global variable from being modified by later-executing

Answer 1

what about this code by http://ejohn.org/ @ http://ejohn.org/blog/ecmascript-5-objects-and-properties/

Look like this actually works... I run some "little" testing and freeze the variables and attributes.

Freezing an object is the ultimate form of lock-down. Once an object has been frozen it cannot be unfrozen – nor can it be tampered in any manner. This is the best way to make sure that your objects will stay exactly as you left them, indefinitely.

Object.freeze = function( obj ) {
  var props = Object.getOwnPropertyNames( obj );

  for ( var i = 0; i < props.length; i++ ) {
    var desc = Object.getOwnPropertyDescriptor( obj, props[i] );

    if ( "value" in desc ) {
      desc.writable = false;
    }

    desc.configurable = false;
    Object.defineProperty( obj, props[i], desc );
  }

  return Object.preventExtensions( obj );
};

Little example

var config = (function (__name) {
    name: __name
    var _local = {
        Server: "SomeText",
        ServerDate: "SomeServerDate",
        JSDate : Util.today(),
        User : {
            user: "1stUser",
            name: "",
            email: ""
        },        
    }

    /*Private Methods*/
    function freezing(__array) {
        $.each(__array, function (_index, _item) {
            Object.freeze(_item);
        });
    }

    /*Public Methods*/
    var $r = {};

    $r.info = function () {
        return _local;
    }

    freezing([
        _local,
        _local.User
    ]);


    _local.User.user = "newUser"; //Trying to assing new value

    //Remain with the same value as first declaration
    console.log(_local.User.user); //--> "1stUser"           
    return $r;
})("config");