Comments in JavaScript
- Normally in JavaScript, the comments are treated as text between //.
- Multiple line comments are treated as the text between /* and */
- Comments are required to make code understandable, we don’t have to think we are not only the coder, programmer & expert.
- If another engineer or developer check any part of the code then S/He should know what is that code and why that code exists. So it’s better to put comments while doing the coding.
HTML / JS Code For Single Line Comment
<html>
<head>
</head>
<body>
<script language="javascript" type="text/javascript">
document.write("Hello World!!"); //prints the hello world!!
</script>
</body>
</html>
Output
This means that there will not be any change in the output using the comments.
HTML /JS Code For Multiple Line Comment
<html>
<head>
</head>
<body>
<script language="javascript" type="text/javascript">
document.write("Hello World!!"); /* prints the
hello world!! program */
</script>
</body>
</html>
Output
Again the output remains the same while using multiple line comments in JavaScript.