Exercise:

Define a function named "myFunction", and make it display "Hello World!" in the <p> element.

Hint: Use the function keyword to define the function (followed by a name, followed by parantheses).
Place the code you want executed by the function, inside curly brackets. Then, call the function.

<!DOCTYPE html>
<html>
<body>

<p id="demo">Display the result here.</p>

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

</body>
</html>