git

If you use git to secure the outcome of your work frequently, the code responsible for one functionality may be scattered  across many commits within a feature branch. You can still commit a unit of work as a whole even if you pushed it to the origin in several stages.

To make sure you will never lose your code, store your project on an online repository hosting service. No matter if you already have some work in progress on your local machine, or you are starting the project from scratch – backup your code online as soon as possible.