
Here are the syntax to add comments in Javascript.
1 Double Trailing Slash – “//”
Example Code:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<script>
//calling alert
alert('test');
</script>
<script src="js/helloworld.js"/>
</head>
<body>
<script>
alert('test');
</script>
</body>
</html>
2 Use asterisk – /** */
Example Code:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<script>
//calling alert
/**
* calling alert
*/
alert('test');
</script>
<script src="js/helloworld.js"/>
</head>
<body>
<script>
alert('test');
</script>
</body>
</html>