Suppose you have done a lot of coding and some logical operations, and used a number of variables on JavaScript, and you want me to help you with the code if any errors occur. When you send me the code, I will not know what you have typed unless I have a clear knowledge of JavaScript or you have commented on the important lines.

A comment is basically a line of text or code that your browser ignores while running. You can compare comments to sticky notes or reminder.

Let's consider the following example:

Var name = "Sherlock Holmes"; // This is a string
Var occupation = "Detective"; // This variable stores information
Var age = 14; // This is an integer type of data.

How do you make multiline comments? You mention the comment in the following manner:

/*
  This is a multiline comment.
  The browser will ignore this.
  You can type any important information on your comment.
*/

Your multiline comment should be between /* and */, as shown in the following screenshot: