FAQ: Javascript Comment Block?

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

JavaScript comment block starts with two symbols: /*. To end the comment, use these symbols */ again. Everything between these symbols will be treated as a comment in JavaScript.

How do you comment out multiple lines in JavaScript?

Multi-line comments start with /* and end with */. Any text between /* and */ will be ignored by JavaScript.

How do you comment in JavaScript?

JavaScript comments are used to write notes in your code or to disable sections of code without deleting them. Comments are made in JavaScript by adding // before a single line, or /* before and */ after multiple lines. Commenting on code is a core feature of a number of programming languages.

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How do you comment out a block of code?

To comment a block:

  1. Select the required block of code.
  2. Press Ctrl + Shift + / The beginning (/*) and ending (*/) characters will be added in the appropriate places in order to mark the selected block as a comment.

How do you comment out multiple lines in code blocks?

To comment out multiple code lines right-click and select Source > Add Block Comment. ( CTRL+SHIFT+/ ) To uncomment multiple code lines right-click and select Source > Remove Block Comment. ( CTRL+SHIFT+ )

What is the shortcut to comment multiple lines?

Here are the few shortcuts to comment code, which works great on Windows.

  1. Ctrl-/ to add or remove // for a single line of code, or for multiple selected lines.
  2. Ctrl-/ to add/remove // for a single line of code, or for multiple selected lines.
  3. Ctrl-shift-/ to add /* */ around selected code.

How do I comment every line?

On Windows 10 you can use CTRL + } to comment/uncomment on any line or block of code. Option 2. While the text is selected hit Ctrl / Cmd + K and then Ctrl / Cmd + C.

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

You can comment on multiple lines by the special beginning tag */ and ending tag /* placed before the first line and end of the last line as shown in the given example below.

How do you comment multiple lines in flutter?

Just select the lines you want to make comment with your mouse, then press the following key combination:

  1. Ctrl + K then press Ctrl + C if you’re using Windows.
  2. Command + K then press Command + C if you’re on a Mac.
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How do you write a good comment in JavaScript?

Single-line comments are generally used to comment a part of the line or full line of code. Single-line comments in JavaScript start with //. The interpreter will ignore everything to the right of this control sequence until the end of the line.

Is JavaScript the same as Java?

The JavaScript programming language, developed by Netscape, Inc., is not part of the Java platform. Java is an OOP programming language while Java Script is an OOP scripting language. Java creates applications that run in a virtual machine or browser while JavaScript code is run on a browser only.

What are the best practices for commenting your code?

Here are some rules to help you achieve a happy medium:

  • Rule 1: Comments should not duplicate the code.
  • Rule 2: Good comments do not excuse unclear code.
  • Rule 3: If you can’t write a clear comment, there may be a problem with the code.
  • Rule 4: Comments should dispel confusion, not cause it.

How do you add comments to code?

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. * This is a block comment.

How do I comment multiple lines in Yaml?

yaml files), you can comment-out multiple lines by:

  1. selecting lines to be commented, and then.
  2. Ctrl + Shift + C.

How do you comment out large chunks of code in Python?

Unlike other programming languages Python doesn’t support multi-line comment blocks out of the box. The recommended way to comment out multiple lines of code in Python is to use consecutive # single-line comments. This is the only way to get “true” source code comments that are removed by the Python parser.

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