Jquery 附加功能不起作用 - 并排添加数字

Question

我正在尝试获取 "Radio value" 和 additionmq 函数 (+)。不收集数字。并排添加。但我想要数学运算。乘法有效。

$('input[name="toplama"], input[name="toplama2"]').on('change', function() {
   var value1 = $('input[name=toplama]:checked').val();
   var value2 = $('input[name=toplama2]:checked').val();
   $( "#sonuclar" ).text( value1 + value2 );
});
$(function(){
 var value1 = $('input[name=toplama]:checked').val();
   var value2 = $('input[name=toplama2]:checked').val();
    $( "#sonuclar" ).text( value1 + value2 );
});

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div id="toplama">
 <label>
  <input type="radio" class="toplama" name="toplama" value="10" checked />
  10 value
 </label>
 <label>
  <input type="radio" class="toplama" name="toplama" value="20" />
  20 value
 </label>
 <br><br><br>
 <label>
  <input type="radio" class="toplama" name="toplama2" value="10" />
  10 value
 </label>
 <label>
  <input type="radio" class="toplama" name="toplama2" value="20" checked />
  20 value
 </label>
</div>
<div id="sonuclar">
 
</div>

Answer 1

您的实施存在的问题是您从 DOM 中提取的值是字符串。这就是为什么您的数字（实际上是字符串）只是连接起来而不是数学相加的原因。您需要将字符串值解析为整数。您可以使用 parseInt() 来做到这一点，如下所示，

$('input[name="toplama"], input[name="toplama2"]').on('change', function() {
   var value1 = $('input[name=toplama]:checked').val();
   var value2 = $('input[name=toplama2]:checked').val();
   $( "#sonuclar" ).text( parseInt(value1) + parseInt(value2) );
});
$(function(){
 var value1 = $('input[name=toplama]:checked').val();
   var value2 = $('input[name=toplama2]:checked').val();
    $( "#sonuclar" ).text( parseInt(value1) + parseInt(value2) );
});

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div id="toplama">
 <label>
  <input type="radio" class="toplama" name="toplama" value="10" checked />
  10 value
 </label>
 <label>
  <input type="radio" class="toplama" name="toplama" value="20" />
  20 value
 </label>
 <br><br><br>
 <label>
  <input type="radio" class="toplama" name="toplama2" value="10" />
  10 value
 </label>
 <label>
  <input type="radio" class="toplama" name="toplama2" value="20" checked />
  20 value
 </label>
</div>
<div id="sonuclar">
 
</div>

Jquery 附加功能不起作用 - 并排添加数字

Jquery additional function not work - number adding side by side

math

input

addition

radio

checked