Quick Answer: Best Way To Comment Javascript Code?

How do you comment out JavaScript code?

To create a single line comment in JavaScript, you place two slashes “//” in front of the code or text you wish to have the JavaScript interpreter ignore. When you place these two slashes, all text to the right of them will be ignored, until the next line.

Should you comment JavaScript?

Commenting out code should only be done during testing purposes. Do not leave snippets of commented out code in your final script. The computer interprets the JavaScript code, but other developers will always read it, as well as for yourself in the future.

What should I comment on code?

How to comment Code: Primarily, a single “block” comment should be placed at the top of the function (or file) and describe the purpose the code and any algorithms used to accomplish the goal. In-line comments should be used sparingly, only where the code is not “self-documenting”.

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.
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How do you comment out a single line in HTML?

You can create a single line comment by putting at the end of your comment. You can also make a multi-line comment in HTML by adding at the end of your multi-line comment.

Which of the following is a JavaScript comment?

JavaScript comments can be used to explain JavaScript code, and to make it more readable. JavaScript comments can also be used to prevent execution, when testing alternative code.

How do you write a good comment?

Top ten tips for writing a great comment

  1. Read the article.
  2. Respond to the article.
  3. Read the other comments.
  4. Make it clear who you’re replying to.
  5. Use the return key.
  6. Avoid sarcasm.
  7. Avoid unnecessary acronyms.
  8. Use facts.

How important are JavaScript comments?

Comments in JavaScript are used to explain the code and make the program more readable for developers. In programming, comments can also be used to prevent some code lines from being executed. This is useful when testing. Multi-line comments are more often used for formal documentations.

What is commented code?

Filters. (programming) To temporarily disable a section of source code by converting it into a comment.

How do you add comment code?

PDT allows you to quickly and easily comment and uncomment code by selecting a line or a block of text and tagging it as a comment. Comments can be added to single lines of code (Ctrl + /) or blocks of code (Ctrl + Shift + /).

What are Javadoc comments?

In general, Javadoc comments are any multi-line comments (” /** */ “) that are placed before class, field, or method declarations. They must begin with a slash and two stars, and they can include special tags to describe characteristics like method parameters or return values.

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How do you write a good code?

11 Tips That Will Help You Write Better Code

  1. 1) Decide on the indentation and keep it that way.
  2. 2) Make comments.
  3. 3) Consistent name scheme.
  4. 4) Don’t repeat code.
  5. 5) Avoid writing long code lines.
  6. 6) Break down a big task into smaller chunks.
  7. 8) Write clever code that is also readable.
  8. 10) Delete unnecessary code.

How do you write a good readable code?

This article will detail the most important best practices when writing readable code.

  1. 1 – Commenting and Documentation.
  2. 2 – Consistent Indentation.
  3. 3 – Avoid Obvious Comments.
  4. 4 – Code Grouping.
  5. 5 – Consistent Naming Scheme.
  6. 6 – DRY Principle.
  7. 7 – Avoid Deep Nesting.
  8. 8 – Limit Line Length.

How can you write a comment in your code python?

A comment in Python starts with the hash character, #, and extends to the end of the physical line. A hash character within a string value is not seen as a comment, though. To be precise, a comment can be written in three ways – entirely on its own line, next to a statement of code, and as a multi-line comment block.

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