Javascript Number getRandom(low, high)

Number.prototype.getRandom = function(low, high) {
    "use strict";
    //from   www .  ja va2  s .co  m
    if ((low === undefined) || (high === undefined)){
        low = 1;
        high = 10;
    }
    var randomNumber = 0;
    //calculate the random number
    randomNumber = Math.round(Math.random() * (high - low)) + low;
    
    return randomNumber;
};

Number.prototype.easterEgg = "Drew added this hidden prop";

/*jshint browser:true */
/*jshint devel:true */

// modifying the prototype of the number objects.


Number.prototype.getRandom = function(low, high){
 
 'use strict';/*from   w  w w  .  ja va2  s . c o  m*/
 var randomNumber;

 // hacking overloading
 if((low === undefined) || (high === undefined)){
  
  low = 1;
  high = 10;
 }

 //calculate the random number
 randomNumber = Math.round(Math.random() * (high - low)) + low;


 return randomNumber;
};

Number.prototype.easterEgg = "This is easter egg!!";