Lesson 20 of 51 ~5 min

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Quiz: Undoing Changes

Test your knowledge of restore, amend, reset, and revert.

1 Quiz: First Repository and Commit 2 Your First Repository and Commit 3 Branching and Merging 4 Quiz: Viewing History and Diffs 5 Viewing History and Diffs 6 Quiz: Undoing Changes 7 Undoing Changes 8 Quiz: Working with Remotes 9 Quiz: .gitignore and Cleaning 10 .gitignore and Cleaning 11 Quiz: Tagging Basics 12 Tagging Basics 13 Quiz: Stashing Changes 14 Stashing Changes 15 Quiz: Collaboration Workflow 16 Basic Collaboration Workflow 17 Checkpoint: Getting Started Quiz

How do you discard unstaged changes in a file named app.js?

git reset app.js

git restore app.js

git revert app.js

Which command removes a file from the staging area without changing its working copy?

git restore —staged app.js

git reset —hard app.js

git commit —amend

What does git commit --amend typically change?

The last commit, replacing it with a new one

It creates a merge commit

It deletes the last commit

Which command is safest to undo a public commit on main?

git reset —hard HEAD~1

git revert <commitSHA>

git switch -c undo

What is the effect of git reset --hard HEAD~1?

Moves HEAD but keeps working tree

Only unstages files

Moves HEAD and discards index and working tree changes