What is a “detached HEAD” and how can you recover from it?

Short answer: A detached HEAD happens when Git’s HEAD (your current position) points to a specific commit instead of a branch.

Explain a bit more

If you make new commits in this state, they won’t belong to any branch — you could lose them if you switch branches. How to fix it: If you accidentally commit in a detached HEAD state: git switch -c temp-branch This creates a new branch from your current state so your commits aren’t lost. Example: You checked out an old commit to test something: git checkout a1b2c3d If you make changes, create a branch to save them before switching back.

Real-world example (ShopNest)

ShopNest’s team uses GitHub PRs with reviews and CI checks so broken builds never reach production unnoticed.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.