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<!DOCTYPE html>
<html>
<body>
​
<select id="mySelect">
  <option>Apple</option>
  <option>Pear</option>
  <option>Banana</option>
  <option>Orange</option>
</select>
​
<p>Click the button to return the number of option elements in the dropdown list.</p>
​
<button onclick="myFunction()">Try it</button>
​
<p id="demo"></p>
​
<script>
function myFunction() {
  var x = document.getElementById("mySelect").length;
  document.getElementById("demo").innerHTML = x;
}
</script>
​
</body>
​
<!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_select_length by HTTrack Website Copier/3.x [XR&CO'2014], Wed, 05 Jun 2019 14:47:59 GMT -->
</html>
​
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