Palindrom.js

/*
Mejora de este script:
  https://gist.github.com/juanj032/5446260
  Basándome en este script:
    https://gist.github.com/juanmboehme
    Mejorado en éste:
      https://gist.github.com/coviedo/5493821
*/
(function(window, document){
 console.time("Tiempo de computo");
  	function isPalindrome (num) {
			num = num.toString();
			return num == (num.split("").reverse().join(""));
		}
 
	
		var data = new XMLHttpRequest();
		var count = total = 0;
    		var x=y=0;
		data.open("GET","file.txt",false);
		data.send();
		data = data.responseText.split("\n");
		var rangos=[[],[]];

		while(data.length)
    {
      todo = data.pop().split(" ");
      if(rangos[0]!=' ') 
      {
        rangos[0].push(parseFloat(todo[0]));
        rangos[1].push(parseFloat(todo[1]));
        if(x==0)x=rangos[0][count];
        x=(rangos[0][count] < x ? rangos[0][count]:x);
        y=(rangos[1][count] > y ? rangos[1][count]:y);
        count++;
      }
    }

		for(x=0; x < y; x++) 
    {
      if(x == (x.toString().split("").reverse().join(""))) 
      {
        for(xy = 0; xy < count; xy++)
        {
          if ((rangos[0][xy] <= x) && (rangos[1][xy] >= x))
          {
            total++;
          }
        }
      } 
    }

    console.log("Total palindromes: "+total);
    console.timeEnd("Tiempo de computo");
  })(window,document)