Tryit Editor v2.7

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

<p>Click the input button to display the value of its value attribute.</p>

<input type="button" onclick="myFunction()" id="myBtn" value="Try it">

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

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

</body>
</html>