React Code Review

By Bernie FitzGerald •  Updated: 01/07/23 •  3 min read

This article will discuss code reviews for React code. Code reviews are a process that usually occurs once a developer is ready to merge their work into a branch that other developers are also working in. It acts as a QA (quality assurance) gate to hopefully reduce bugs in a system.

First, we need to understand a code review and its purpose.

What is a code review?

A code review is a process of reviewing source code to identify and fix problems and improve the quality of the code. There will be a specific checkpoint where code reviews occur in many software teams. This is often part of a PR (pull request) where users can approve and suggest fixes to someone’s code. In smaller teams, there may not be such stringent checkpoints, and it may be done on the fly before new code is deployed to production.

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Code reviews for React applications can follow similar processes to code reviews for other applications. Some specific things that reviewers might look for when reviewing React code include the following:

It’s also essential to ensure that the code is well-organized and easy to understand, with a clear function, variable names, and appropriate comments. Reviewers may also look for opportunities to refactor the code to make it more maintainable or scalable.

Conclusion

Performing code reviews on React code is very similar to any other language or framework code review. The typical components of a code review look for any obvious mistakes but then drill down to coding standards, reuse of code, appropriate placement within the project etc. Most importantly, (at least in my opinion) code reviews allow multiple developers to look over each other’s code. A lot of learning goes on in this process (and we never stop learning), even for reviews where there is nothing to comment on and are approved straight away.

Bernie FitzGerald