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Engineering

Code Reviews

256 people are learning this skill right now!
A code review is when a software engineer checks another engineer's code before it goes to production. This can help prevent bugs, improve code quality, share knowledge, encourage Mentorship, and improve overall Development Velocity.
  1. Learn Code Reviews with the Practica AI Coach

    The Practica AI Coach helps you improve in Code Reviews by using your current work challenges as opportunities to improve. The AI Coach will ask you questions, instruct you on concepts and tactics, and give you feedback as you make progress.
  2. Intro to Code Reviews

    Code reviews are a crucial part of the software development process that involves examining code to identify bugs, improve quality, and promote best practices.
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  3. Common Code Reviews Challenges

    These are common challenges people face when gaining expertise in code reviews. Tackling these challenges head-on can help you learn this skill quicker.

    I'm a senior software engineer leading a team of junior developers. During a code review, I noticed that one of the junior developers consistently makes the same mistakes in their code. It's causing delays in our project and I'm concerned about the quality of their work. I'm not sure how to address this issue without demotivating the developer or damaging our working relationship. What strategies can I use to provide constructive feedback and help them improve their coding skills?
    I'm a software engineer working on a project with a tight deadline. I submitted my code for review, but the reviewer has been taking a long time to provide feedback. This delay is causing a bottleneck in the development process and slowing down the project. I'm unsure how to approach the reviewer and ask for timely feedback without coming across as pushy or impatient. How can I effectively communicate the urgency of the situation and ensure prompt code reviews?
    Work on your own challenge with the Practica AI Coach
  4. Further Reading

  5. Example Code Review Policies

    Example code review policies may include guidelines for the frequency and scope of reviews, the use of automated tools, and the roles and responsibilities of different team members. Policies should be tailored to the needs and culture of the organization.
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  6. Code Reviews Cheat Sheet

    Here is a quick reference for the top 5 things you need to know about Code Reviews.

    1. Step 1: Establish Clear Expectations
      • Learn or define the purpose and goals of the code review process.
      • Understand existing guidelines for code quality, style, and standards.
      • Learn the roles and responsibilities of reviewers and developers.
    2. Step 2: Review the Code
      • Understand the context and requirements of the code.
      • Assess the design, architecture, and implementation.
      • Identify potential bugs, security vulnerabilities, and performance issues.
    3. Step 3: Provide Constructive Feedback
      • Focus on the code, not the developer.
      • Be specific, objective, and actionable in your comments.
      • Offer suggestions for improvement and alternative approaches.
    4. Step 4: Collaborate and Discuss
      • Engage in open and respectful discussions with the developer.
      • Seek clarifications and address any concerns or questions.
      • Encourage a learning environment and knowledge sharing.
    5. Step 5: Follow-Up and Closure
      • Verify that the identified issues have been addressed.
      • Provide acknowledgment and appreciation for improvements made.
      • Document lessons learned and share insights for future reviews.
  7. Guidance for the Code Author

    Code authors should strive to write clean, readable, and maintainable code, and provide clear documentation and explanations for their decisions.
  8. Guidance for the Code Reviewer

    Code reviewers should approach reviews with a constructive mindset, focusing on providing feedback that is specific, actionable, and respectful. They should also be aware of common biases and blind spots that can affect their evaluations.
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  9. Frequently asked questions

    • How can I make my code reviews more effective and efficient?

      Focus on clear communication, setting expectations, and using the right tools. Ensure that the code author provides a clear description of the changes and the context for the review. As a reviewer, prioritize critical issues, such as bugs, security vulnerabilities, and performance problems, and provide constructive feedback. Utilize code review tools that facilitate collaboration, automate routine checks, and help track the review progress.

    • How do I handle disagreements during a code review?

      Handling disagreements during a code review requires open communication, empathy, and a focus on the code rather than personal opinions. When a disagreement arises, discuss the issue calmly and objectively, considering the pros and cons of each approach. If necessary, involve a third party or refer to established coding standards and best practices to help resolve the disagreement. Remember that the goal of a code review is to improve the code quality, not to prove who is right or wrong.

    • How can I ensure that my code reviews are inclusive and promote a positive team culture?

      Promoting inclusivity and a positive team culture during code reviews involves being respectful, constructive, and empathetic. Provide feedback that focuses on the code, not the person, and avoid using negative or judgmental language. Encourage team members to ask questions and share their perspectives, and be open to learning from others. Recognize and appreciate the contributions of all team members, and foster a collaborative environment where everyone feels comfortable participating in code reviews.