Code Review Comment Examples

Phrases and examples for code review: suggestions, questions, praise.

Quick answers

How do you comment in a code review?
Be specific, explain why, suggest alternatives. Use 'consider' or 'could we.'

Key takeaways

  • Use 'consider' and 'could we.'
  • Explain the why.
  • Ask when unsure.

Instead of → Say

Instead ofSay
This is wrongConsider handling the null case here—we've seen it in production.
Fix thisCould we extract this into a helper? It would make the main function clearer.
Why?I'm curious about this approach. Was there a reason we didn't use [alternative]?

Example dialogue

Reviewer: Consider adding a test for the unauthenticated case. Author: Good catch. I'll add that. Reviewer: Approving.

Common mistakes

  • Vague comments.
  • Harsh tone.

Frequently asked questions

How do I write a code review comment?
Be specific, explain why, use 'consider' or 'could we.'
How do I respond to review feedback?
Acknowledge, fix or explain. 'Good point. I've updated it.'

Related

Ready to practice?

Try a scenario with AI and get feedback on your communication.

Start practicing