In JavaScript, there are two ways to comment the statements a) // and b) /* */. In our example "commented statements" and "document.getElementById("myP").innerHTML = "My first paragraph.";" are commented out. See the code
<!DOCTYPE html>
<html>
<body>
<div id="mydiv"></div>
<script>
// commented statements
document.getElementById("mydiv").innerHTML = "My First Page";
/*
document.getElementById("mydiv").innerHTML = "My first paragraph.";
*/
</script>
<p><strong>Note:</strong> The comments are not executed.</p>
</body>
</html>