How to make comments in JavaScript?

How do you comment out a block of code in JavaScript?

The JavaScript comment feature simplifies the production of more readable code. They are easy to write and recognize: a JavaScript comment block (also known as the multi-line comment) begins with */ , while a single line comment starts with //.

How do you comment a script tag?

Comments

  1. Select some JavaScript code inside of a <script> block in an HTML file*.
  2. Use the keyboard shortcut to “Add a line comment” or run the command from the command palette.
  3. Note that in the latest Insiders build, it no longer uses //“JavaScript-valid comments; instead, it now uses ` comments.

How do you insert a comment with more than one line?

To comment more than one line:

  1. Select all the lines that you would like to be commented.
  2. Press Ctrl + / Two slashes “//” will be added to the front of each line, causing them to be recognized as a comment.

How do you write a comment in a scheme?

Comments in Scheme source files are written by starting them with a semicolon character ( ; ). The comment then reaches up to the end of the line. Comments can begin at any column, and the may be inserted on the same line as Scheme code.

How do I comment in JSON?

JSON does not support comments. It was also never intended to be used for configuration files where comments would be needed. Hjson is a configuration file format for humans. Relaxed syntax, fewer mistakes, more comments.

Where is JavaScript used?

JavaScript is a text-based programming language used both on the client-side and server-side that allows you to make web pages interactive. Where HTML and CSS are languages that give structure and style to web pages, JavaScript gives web pages interactive elements that engage a user.

See also:  How to fix JavaScript?

How do I comment in html5?

An HTML comment begins with <! –– and the comment closes with ––> . HTML comments are visible to anyone that views the page source code, but are not rendered when the HTML document is rendered by a browser.

How do I hide my code?

How to Hide an HTML Text Code

  1. Launch your HTML editor. Select “File” and “Open” from the program’s navigation bar. …
  2. Locate the text within the HTML document you want to hide. …
  3. Type “<” followed by “! …
  4. Type “—” followed by “>” (no quotes and no spaces) at the end of the block of text you want to hide. …
  5. Save your HTML document.

What is comment tag in HTML?

The comment tag is used to insert comments in the source code. Comments are not displayed in the browsers. You can use comments to explain your code, which can help you when you edit the source code at a later date.

How do I add code notes?

The single line comment is //. Everything from the // to the end of the line is a comment. To mark an entire region as a comment, use /* to start the comment and */ to end the comment.

How do you comment code in node JS?

The first way is the single-line comment by using two forward slashes ( // ). // Anything after the two slashes is commented out. Anything after the two slashes ( // ) will be commented out.

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