Question

what’s the easiest way to sum values who all are in the same class

<div class='head'>
  <div class='title'>
    <div class='sumMe'>$1.01</div>
  </div>
</div>

<div class='head'>
  <div class='title'>
    <div class='sumMe'>$2.01</div>
  </div>
</div>

sumMe = 3.02

Answer 1

You can achieve this quickly using a jQuery each loop, the Number() function, and the isNan() function just to be on the safe-side.

var sum = 0;

$(".sumMe").each(function(){
   var value = Number($(this).text());
   // or parseInt($(this).text(), 10);
   sum += isNaN(value) ? 0 : value;
});

alert(sum);