jquery对重复行数组中的所有值求和

大家好，我找不到解决方案

<tr><td> Some Code here <input name="forwardings[nodes][amount][]" class="repeatingClass"> some more code here </td> </tr>
<tr><td> Some Code here <input name="forwardings[nodes][amount][]" class="repeatingClass"> some more code here </td> </tr>
<tr><td> Some Code here <input name="forwardings[nodes][amount][]" class="repeatingClass"> some more code here </td> </tr>

我能做什么？

---

输入中的空值被解释为字符串。因此，您应该首先检查是否有值，如果有，则在调用

parseInt

或

parseFloat

$(function(){

     $('.repeatingClass').focusout(function(){
         var totalPoints = 0;

       $('.repeatingClass').each(function(){

           if ($(this).val())
               totalPoints += parseInt($(this).val());
       });

       alert(totalPoints);

     });

});

他是一把小提琴

$(function(){

     $('.repeatingClass').focusout(function(){
         var totalPoints = 0;

       $('.repeatingClass').each(function(){

           if ($(this).val())
               totalPoints += parseInt($(this).val());
       });

       alert(totalPoints);

     });

});