How to fix a bug systematically
A repeatable process finds bugs faster than guessing.
6 steps →How-to guides
Software Developer How-To Guides
Step-by-step guides to common software developer tasks: the practical side of the job.
Common software developer tasks
Step-by-step overviews of tasks software developers perform regularly. Use them to understand the job, prepare for training or refresh your memory.
How to open a good pull request
Clear pull requests speed up reviews and reduce errors.
6 steps →How to write a unit test
Tests protect code from future breakage.
6 steps →Before you practice
Learn every core task
Our Software Developer training walks through these procedures and more, alongside vocabulary, safety and career-launch lessons.