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<!DOCTYPE html>
<html>
<body>
<form>
  <select name="selectName" id="mySelect">
    <option>Apple</option>
    <option>Pear</option>
    <option>Banana</option>
    <option>Orange</option>
  </select>
</form>
<p>Click the button to return the value of the name attribute of the drop-down list.</p>
<button onclick="myFunction()">Try it</button>
<p id="demo"></p>
<script>
function myFunction() {
  let x = document.getElementById("mySelect").name;
  document.getElementById("demo").innerHTML = x;
}
</script>
</body>
</html>