javascript更改选择选项文本

Question

Im trying to modify the text of the first select option via javascript. But it empties the entire select option

 <select name='stuff'>
      <option value="a"> Pepsi </option>
      <option value= "b"> Juice </option>
 </select>


<script type="text/javascript">
    document.getElementsByName('stuff')[0].innerHTML = "Water";
</script>

Answer 1

您想要从选项集合中读取并修改其中的第一个元素：

document.getElementsByName('stuff')[0].options[0].innerHTML = "Water";

Answer 2

你可以试试这个：

 $('select[name=stuff] option:first').html("abcd");

Answer 3

I think this should work:

 <select name='stuff'>
          <option id="first" value="a"> Pepsi </option>
          <option value= "b"> Juice </option>
     </select>


    <script type="text/javascript">
        document.getElementById("first").innerHTML = "Water";
    </script>