how to add a comment in javascript code example

Example 1: javascript comment

//This is a javascript single line comment

/*
And here is a
multiline comment
*/

Example 2: comment in javascript

// single line comment 

/* multiline comemnt 
line 2
line 3
line 4 */

Example 3: comment in JavaScript

// This is how you comment a single line in JavaScript

/*
This is how you comment
multiple lines in 
JavaScript
*/

Example 4: comment out in javascript

<script type="text/javascript">
<!--
// This is a single line JavaScript comment

document.write("I have comments in my JavaScript code!");
//document.write("You can't see this!");
//-->
</script>