gistfile1.txt

var n = 45;

sys.puts(typeof n);
sys.puts(n instanceof Number);

var m = Number(45);

sys.puts(typeof n);
sys.puts(n instanceof Number);

var o = new Number(45);

sys.puts(typeof n);
sys.puts(n instanceof Number);

this gist is broken and not for consumption of anything, notice the variables are wrong.

also for fun...

      exports.isNumber = function( numbery ){

        if(numbery.toString() == 'NaN'){
          return false;  
        }
        if(numbery instanceof Number){
          return true; 
        }
        else{
          return false;
        }

      };


      format.js lib/types

      isNumber() on a number instance
       - this is a number
      isNumber() on a string number 
       - this is not a number
      isNumber() on number literal
       - this is not a number
      isNumber() on string with randomly placed numbers
       - this is not a number

      Verified 4 vows in 0.002 seconds.

      4 honored, 0 broken, 0 errored