Git - 3 main states of artifact

Modified - Artifact is undergoing user modifications.
Staged - User had marked the modified file to go to the next stage. The is achieved by add command.
Commited - The artificat is safely stored in the local git database. This is acheived by commit command.

Refer: https://medium.com/@zjpjack/reverting-modified-in-4-stages-in-git-f3997f526902