Tryit Editor v2.9

Edit This Code:
<!DOCTYPE html>
<html>
<body>

<ol>
  <li id="myLi" value="100">Coffee</li>
  <li>Tea</li>
  <li>Milk</li>
  <li>Water</li>
  <li>Juice</li>
  <li>Beer</li>
</ol>

<p>Click the "Try it" button to display the value of the value attribute of the li element.</p>

<button onclick="myFunction()">Try it</button>

<p id="demo"></p>

<script>
function myFunction() {
    var x = document.getElementById("myLi").value;
    document.getElementById("demo").innerHTML = x;
}
</script>

</body>
</html>