Prune Merged Branches
Delete branches that are already merged, keep the rest.
A beginner Git challenge worth 3 points. Solve it hands-on in a real Git environment in your browser - no local setup, no fake shells.
The Challenge
Scenario: /tmp/repo has feature-a & feature-b (merged) and keep-me (not merged).
Task: Delete the two merged branches; keep main and keep-me (git branch -d).