What is a Git merge and how does it work?

What is a Git merge and how does it work?

A Git merge is a command that integrates changes from one branch into another. It combines the histories of both branches.

Can you explain the difference between a fast-forward merge and a three-way merge?

Sure! A fast-forward merge occurs when the current branch's HEAD is directly behind the branch being merged, allowing Git to simply move the pointer forward. A three-way merge happens when there are diverging changes, requiring Git to create a new commit that combines the changes.

What happens if there are conflicts during a merge?

If there are conflicts, Git will pause the merge and mark the files with conflicts. You'll need to resolve these conflicts manually before completing the merge.

How can I resolve merge conflicts in Git?

You can resolve merge conflicts by opening the conflicted files, editing them to fix the conflicts, and then staging the changes with git add. Finally, complete the merge with git commit.