Question

我多次调用onclick函数时遇到问题。问题是我使用相同的ID，但我希望能够再次使用该功能进行第二次调用。这是我到目前为止所做的：

<p onclick='myfunction()'> Click this text for input box  below </p>
<b id='myThing'>input box appears .. ta daa</b>
<p onclick='myfunction()'> Click this new text for input box below </p>
<div id='myThing'> but no input box appears here, the line above must turn this text into a  textbox, but it doesn't because of similar id, how do i fix the id problem without defining a new id over and over?</div>
<script>
  function myfunction(){
    document.getElementById("myThing").innerHTML='<input type="text"/>';
  }
</script>

有没有办法将ID转换为Javascript变量？如何使零件创建输入框？

Answer 1

在这种情况下，您不需要使用ID来获取div。

function myfunction(){
 this.nextSibling.innerHTML='<input type="text"/>';
 }

Answer 2

你可以这样做：

<p onclick='myfunction("myThing")'> Click this new text for input box below </p>
<script>
function myfunction(id){
 document.getElementById(id).innerHTML='<input type="text"/>';
 }
 </script>

Demonstration

请注意，您也可以使整个过程更简单：只是不使用任何id但让函数找到下一个元素：

<p onclick='myfunction(this)'> Click this text for input box  below </p>
<b>input box appears .. ta daa</b>
<p onclick='myfunction(this)'> Click this new text for input box below </p>
<div> but no input box appears here, the line above must turn this text into a  textbox, but it doesn't because of similar id, how do i fix the id problem without defining a new id over and over?</div>

<script>
function myfunction(element){
    do {
        element = element.nextSibling;
    } while (element && element.nodeType != 1);
    element.innerHTML='<input type="text"/>';
 }
</script>

Demonstration

使用相同的HTML ID多次调用Javascript函数

2 个答案: