jquery总结重复行数组中的所有值

Question

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> 

和我需要总结所有repeatingclass值，当我从这些其中之一集中我尝试了这样的事情，但无法处理这个;

$('.repeatingClass').focusout(function(){ 
    var totalPoints = 0; 
    $('.repeatingClass').each(function(){ 
    totalPoints += $('.repeatingClass').val(); 
    }); 
    alert(totalPoints); 
}); 

我该怎么办？ 关于

Answer 1

输入中的空值被解释为字符串。所以，你应该检查第一，如果有一个值，如果是的话，称parseInt或parseFloat

$(function(){ 

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

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

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

     alert(totalPoints); 

    }); 

}); 

Here是小提琴