The JavaScript interpreter ignores comments. Comments do have value, though; they’re very useful for explaining things to human readers of your script. Of course, including yourself.
1) Single-line comment
//Single-line comments don’t require an ending slash.
2) Multiple-line comment
/* This comment can span multiple lines. Always remember
to close it. Though; if you forge. you’ll get weird errors when
you try to display your script. */
Note:
Don’t mix up HTML comment <!– HTML comment –> and JavaScript comment.
