Mastering Code Review: Essential Practices for Frontend Teams

Introduction

There is no love without reason, no hate without reason, and certainly no code review without cause.

Why Code Review

A story illustrates the need: a senior engineer angrily demanded to know who wrote code lacking comments and containing obvious bugs. The team feared speaking up, but the engineer forced a review to avoid personal embarrassment.

1. Roles and Responsibilities

Author (requirement developer)

Emphasize comments: add clear annotations for complex business logic and detailed commit messages for reviewer context.

Maintain a positive attitude toward reviews; respond politely to comments, explain disagreements, and view review as mutual learning.

After fixing comments, promptly provide feedback and mark commits with notes like "review: xxxx" to aid re‑inspection.

Reviewer (CR participant)

Specify comment level:

fix: mandatory change with concrete suggestion.

advise: optional suggestion.

question: request clarification from the author.

Use friendly language, suggest improvements, and praise good code.

Enjoy the review process, avoid a nit‑picking mindset, and focus on understanding the author’s intent.

2. Code Review Process

1. Self‑review

Before committing, diff changes, optionally use tools like

gitk

or pre‑commit lint checks to catch debug statements.

When multiple collaborators work on a branch, ensure no unnecessary commits are merged.

Adopt conventional commit messages (e.g., feat, fix, chore, docs, style, refactor) via tools like husky and commitlint to increase message clarity.

This enhances commit message information, helping reviewers and authors understand changes efficiently.

2. CR

Initiate a review when testing, linking the task to reviewers via GitLab, Sourcetree, VSCode GitLens, etc.; reviewers provide feedback.

After addressing reviewer suggestions, annotate the commit message (e.g., "review fix") for easy re‑inspection.

For urgent tasks, skip the CR step and perform a post‑review.

3. Code Review Standards

Avoid obsessing over coding style; rely on tools like ESLint/TSlint/Stylelint.

Consider performance impacts such as large data handling or redundant rendering.

Ensure adequate code comments, including field and documentation comments.

Promote readability: avoid deep nesting, redundant code, and use clear naming.

Design for extensibility: reasonable method design and modular decomposition.

Control review time cost: reviewers should focus on logic rather than line‑by‑line reading.

Conclusion

Code review is not a bug‑hunting or fault‑finding exercise that hampers development speed; it ensures project consistency, saving future maintenance effort. Its success depends on every team member’s participation and endorsement. The author also recommends a VSCode extension that automates merge‑request creation and notifies stakeholders via enterprise WeChat.