Can't believe this list doesn't include revision control systems. So many benefits. Without these, you can't easily work with others. Never again break code then scratch your head wondering how to return it to previously working state (we've all been there). Have a documented history of changes over time. Support for branching. Also amazing for efficiency and not so frequently used are pre and post commit hooks for CI/CD.
Basic inline documentation. Who wrote it, when and why. What else did you consider. How does it differ from other solutions. Why is it designed the way it is. Brief history of design changes. What state did you reach in testing. What are the forward looking goals. Takes 5 minutes, pays for itself many times over in future. 90% of effort is maintenance.
Basic inline documentation. Who wrote it, when and why. What else did you consider. How does it differ from other solutions. Why is it designed the way it is. Brief history of design changes. What state did you reach in testing. What are the forward looking goals. Takes 5 minutes, pays for itself many times over in future. 90% of effort is maintenance.