Question

Im trying to do a sum of values i get from id but it keeps appending second value to first instead of doing sum as it should.

Example 23+25=2325

Heres my code:

This is the code im using to sum.

        $('input').blur(function() {
            for (var i=1; i<=value; i++) {

              var one = document.getElementById("veb_blocos-"+i).value; 
              var two = document.getElementById("veb_pellet-"+i).value;
              var sum1 = one+two;
              document.getElementById("total1-"+i).value = sum1; 
           };

        });

Answer 1

Because the value of an input is a string. Cast it to int.

$('input').blur(function() {
    for (var i=1; i<=value; i++) {

      var one = document.getElementById("veb_blocos-"+i).value; 
      var two = document.getElementById("veb_pellet-"+i).value;
      var sum1 = parseInt(one,10)+parseInt(two,10);
      document.getElementById("total1-"+i).value = sum1; 
   };

});