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<!DOCTYPE html>
<html>
<body>
​
<form>
  <input list="browsers" name="browser">
  <datalist id="browsers">
    <option value="Internet Explorer">
    <option value="Firefox">
    <option value="Chrome">
    <option value="Opera">
    <option value="Safari">
  </datalist>
</form>
​
<p>Click the button to display the number of option elements in the datalist.</p>
​
<button onclick="myFunction()">Try it</button>
​
<p><strong>Note:</strong> The datalist element is not supported in Internet Explorer 9 and earlier versions, or in Safari.</p>
​
<p id="demo"></p>
​
<script>
function myFunction() {
  var x = document.getElementById("browsers").options.length;
  document.getElementById("demo").innerHTML = "Found " + x + " options in the list.";
}
</script>
​
</body>
​
<!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_datalist_options_length by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 03:17:12 GMT -->
</html>
​
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