euler.4.js

var sys = require('sys');
var Euler4 = function() {

  var isPalindromicNumber = function(num) {

      var digitString = num.toString();
      var reverseString = digitString.split('').reverse().join('');
      return (digitString==reverseString);
  }

  var getResult = function() {
    result = 0;
    
    res = 0;
    for(var i=999;i>99;i--) {
	for(var j=999;j>99;j--) {
	    if(j<i) break;
	    res = j*i;
	    
	    if(isPalindromicNumber(res)) {
		
		if(res>result) {
		    result = res;
		};
		break;
	    }
	}
    }

    sys.puts('Result: ' + result);
  }

  getResult()
};

new Euler4();