Javascript DOM HTML Select add() Method add option at beginning

Introduction

Add a "AAA" option at the beginning of a drop-down list:

Click the button to add a "AAA" option at the beginning of the dropdown list.

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<!DOCTYPE html>
<html>
<body>

<form>
  <select id="mySelect" size="8">
    <option>Apple</option>
    <option>Pear</option>
    <option>Banana</option>
    <option>Orange</option>
  </select>
</form>//from   www.  j a  v  a 2s.c o m
<br>

<button type="button" onclick="myFunction()">Insert option</button>

<script>
function myFunction() {
  var x = document.getElementById("mySelect");
  var option = document.createElement("option");
  option.text = "Kiwi";
  x.add(option, x[0]);
}
</script>

</body>
</html>



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