删除form下面的节点

Question

Form表单里面有一组单选按钮，怎么实现删除最后一节点

Answer 1

补充下，Form里面不只是有单选按钮还有其他的

Answer 2

Form表单里面有一组单选按钮，怎么实现删除最后一个单选按钮？？？？

Answer 3

<form action="radioServlet" method="post" name="danxuan">
   请输入题目：
    <input type="text" name="title" style="overflow-x:visible;width:60;"/><br/>     <input type="button" id="del" value="减少选项" onclick="delChoice()"/>
    <input type="text" name="choices" value="aaa"/>A
<input type="text" name="choices" value="aaa"/>B
<input type="text" name="choices" value="aaa"/>C
<input type="text" name="choices" value="aaa"/>D
    <input type="text" name="answer"><br/>
    <input type="submit" value="提交"><br/>
   </form>

Answer 4

<script type="text/javascript">
    function delChoice() {
        var options = document.getElementsByName("choices");
        var delEle = options[options.length - 1];
        document.getElementsByName("danxuan")[0].removeChild(delEle);    }
  </script>

Answer 5

function delChoice()
{
   var ipts = document.getElementsByName("choices");
   if(ipts.length>0)
   {
   ipts[ipts.length-1].nextSibling.parentNode.removeChild(ipts[ipts.length-1].nextSibling)
   ipts[ipts.length-1].parentNode.removeChild(ipts[ipts.length-1]);
}
}

Answer 6

ipts[ipts.length-1].parentNode.removeChild(ipts[ipts.length-1]);
这个可以谢谢
结贴

Answer 7

function delChoice(){
   var ipts = document.getElementsByName("choices");
   if(ipts.length>0){
   ipts[ipts.length-1].parentNode.removeChild(ipts[ipts.length-1].previousSibling);
   ipts[ipts.length-1].parentNode.removeChild(ipts[ipts.length-1]);
}
}

Answer 8

function delChoice(){
   var ipts = document.getElementsByName("choices");
   if(ipts.length>0){
   ipts[ipts.length-1].parentNode.removeChild(ipts[ipts.length-1].previousSibling);
   ipts[ipts.length-1].parentNode.removeChild(ipts[ipts.length-1]);
}
}