The AWA articles from the web define the web devlopment in the most exceptional way. It defines that code review can be considered as an art of reviewing another person’s code, observing and making suggestions and understanding from one another. It is a very useful software development tool which helps in understanding and gaining knowledge about code base and enhancing code quality. With its wise use, code reviews can help you in making better products with fewer defects.
There are usually two forms of code reviews–formal code review and lightweight code review.
Formal Code Review requires detailed process and involves multiple participants and various phases. It is a traditional way of code review, where software developers join for numerous meeting and review codes thoroughly line by line. These are usually done using printed paper copies containing the codes. It is an effective way of finding coding defects.
Lightweight Code Review is detailed when compared to a formal code review but can be equally productive when performed with due diligence.
Why Code Review
The objective of doing code reviews is to check for:
- Defects or possible defects.
- Inconsistency with the design of the program.
- Noncompliance of coding standards.
Apart from the above mentioned benefits, reviewing codes also helps in identifying any security-related vulnerabilities. Another important benefit with other advantages is mentorship. Often, the junior developers or the senior developers of the team have some knowledge others on the team may not know. Displaying other team members how you create code could help them gain and find out few tips and tricks which you may have acquired. Furthermore, reviewing code developed by others, expressly the ones which have been developed by some of the younger developers can help you in understanding diverse ways of solving a problem and may help the way you may encounter software development-related problems in the future.
One of the other reasons people consider reviewing code is to reduce the delays which might happen due to the unavailability of a coder who has been working solely on a particular project. At times, it may take long for the team to get up to speed on work which was being done by a team member who may be unavailable. In some extreme cases, the codes might be required to be rewritten in total. By ensuring that codes are being reviewed by another person, the code review process really assists in mitigating the concerns that arise in unforeseen difficult circumstances.
One of the most compelling reasons for which you might consider code review is to discover any defects at an early phase in your development process and to resolve them as quickly as possible. A fresh set of eyes are better, and with another person investigating the code aside from the code developer, there are very less chances of any defects which might slip by. However, reviewing codes does not guarantee that all the defects in the codes will be detected and the program will be error free—it provides a sanity check and helps in accurate software development.
How to Review Code
The mechanics of code review include:
- Writing some codes.
- Asking someone to review the code so created.
- Incorporating the feedback provided by the reviewer of the code.
- Submitting the code to the repository.
There are numerous tools which you can employ for reviewing code. Gerrit is one of the tools which was designed by Google Android team for performing remote code review. Review Board is also one of the tools which you may use with several version control systems and which serves a similar result.