Question

我想更改与radiobutton id =“male”相关联的标签文本。我已尝试过各种方法来做到这一点，但我不能让它发挥作用。我想更改与单选按钮关联的标签中的文字“男性”。

  <input type="radio" name="sex" id="male" value="male">
        <label for="male">Male</label>
  </input>

 <input type="button" value="Submit" onclick = test()>

<script>

function test()
{
   var r = document.getElementById("male");
   r.nextSibling.data = "adaS";
//  r.nextSibling.nodeValue = "adaS";     // have tried all these ways
//  r.childNodes[0].value= "adaS";
//  r.childNodes[0].innerHTML= "adaS";
//   r.parentNode.childNodes[1].innerHTML= "adaS";

}

</script>

请建议一些改变标签中“男性”字样的工作方式。

Answer 1

您可以使用

var r = document.getElementsByTagName("label")

选择页面中的所有标签元素，然后使用

r[0].innerHTML ="new text"

选择第一个标签并将文本设置为＆＃34;下一个文本＆＃34;在你的test（）函数中

Answer 2

我尝试使用上面的想法来获得一个有效的例子，并遇到了一些问题。所以我在另一个帖子中寻求帮助，@ KrishCdbry非常友好地解决了这个问题。发布的问题位于javascript - How to dynamically change information displayed by radio button?以下是Krish更改的工作示例

 <html>
<form name="myform" onsubmit="OnSubmitForm();">
   <input type="radio" id = 'first'  name="operation" value="1"
          checked> <label for="alsoFirst"> Answer 1 </label>
   <input type="radio" id = 'second'  name="operation" value="2">
  <label for="alsoSecond">Answer 2</label>

   <p>
   <input type="submit" name="submit" value="save">
   </p>
</form>



<script type="text/javascript">
 document.addEventListener('readystatechange', function() {
  // Seems like a GOOD PRACTICE - keeps me from getting type error I was getting

    // https://stackoverflow.com/questions/14207922/javascript-error-null-is-not-an-object

    if (document.readyState === "complete") {
      init();
    }
  });

 function init() {

    console.log ("expect to change -Answer 1- displayed by first button to word junk");


     // this works
    var label = document.getElementsByTagName('label') [0];
    // this does not work
    label.innerHTML = 'junk';
    }

//http://www.javascript-coder.com/html-form/html-form-action.phtml
function OnSubmitForm()
{
  if(document.getElementById('first').checked == true)
    {
    alert ( "You have selected the first answer" );  
    }
  else
    if(document.getElementById('second').checked == true)
        {
        alert ( "You have selected the SECOND answer" );  
        }

  return false;
}

/*
<input type="radio" name="sex" id="male" value="male">
        <label for="male">Male</label>
  </input>

var input = document.getElementById('male');
var label = input.getElementsByTagName('label')[0];
label.innerHTML = 'New Text';

*/
//https://stackoverflow.com/questions/32292962/javascript-how-to-change-radio-button-label-text
</script>




</html>

Answer 3

使用jQuery，var input = document.getElementById('male'); var label = input.getElementsByTagName('label')[0]; label.innerHTML = 'New Text';

普通JS：

var label = document.getElementById('male').getElementsByTagName('label')[0];
label.innerHTML = 'New Text;

也可以将它们连在一起：

/Library/Frameworks/SDL2.framework

Javascript如何更改单选按钮标签文本？

3 个答案: