Tips for formatting JavaScript code

JavaScript formatting tips

1. Define a team standard

Select one formatting style and commit it to the configuration file. This prevents disputes in code reviews.

2. Use auto-formatting

Set up automatic formatting when saving a file in VS Code or WebStorm.

3. Add formatting to CI/CD

Formatting checks during the CI phase ensure that unformatted code does not end up in the repository.

4. Separate logical blocks

Blank lines between functions and code blocks improve readability.

5. Limit line length

The optimal length is 80–120 characters. Long strings are difficult to read and compare in diff.

6. Format imports

Group imports by category: external libraries, internal modules, styles.

7. Use destructuring

Destructuring makes the code more compact and clearer, especially when working with props and parameters.

8. Consistency is more important than style.

It doesn't matter whether you use tabs or spaces, as long as the entire project follows the same standard.

See also: CSS Minifier, Regex tester, Diff Checker