Exercise:

Add an onclick event attribute to <button>. Clicking the button should trigger myFunction().

Syntax hint: <element event="some JavaScript">

<!DOCTYPE html>
<html>
<body>

<button onclick="myFunction()">Click Me</button>

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

<script>
function myFunction() {
    document.getElementById("demo").innerHTML = "Hello World";
}
</script>

</body>
</html>