Tryit Editor v2.9

Edit This Code:

<!DOCTYPE html>
<html>
<body>

<p>Click the button to demonstrate line-breaks in a popup box.</p>

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

<script>
function myFunction() {
alert("Hello\nHow are you?");
}
</script>

</body>
</html>

<!DOCTYPE html>
<html>
<body>

<p>Click the button to demonstrate line-breaks in a popup box.</p>

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

<script>
function myFunction() {
    alert("Hello\nHow are you?");
}
</script>

</body>
</html>