Code Review

ELI5 — The Vibe Check

A code review is when another developer reads your code before it gets merged, looking for bugs, bad practices, or anything confusing. It is like getting a friend to proofread your essay before you hand it in. Fresh eyes catch things you are blind to after staring at your own code for hours.

Real Talk

Code review is a systematic examination of source code by peers before it is merged into the main codebase. Reviews are conducted through pull requests on platforms like GitHub or GitLab. Reviewers check for correctness, test coverage, security issues, performance, readability, and adherence to coding standards. Code review is one of the most effective defect-prevention practices in software engineering.

Show Me The Code

# GitHub code review workflow:
# 1. Push feature branch
git push origin feature/user-auth

# 2. Open pull request on GitHub
# 3. Teammates review, leave comments:
#    - "This could be a security issue — sanitize the input"
#    - "Extract this into a separate function for readability"
# 4. Author addresses feedback, pushes fixes
# 5. Reviewer approves → merge

When You'll Hear This

"Can you do a code review on my PR?" / "The code review caught a SQL injection before it shipped."