How to rollback the creation of a branch in git?

Question

git

I have a master branch and a new update branch

. I committed all the changed files in update, which is why these changes disappeared from master.
I want to delete the update branch and have all changes returned to master

Please tell me, if I just delete the update branch, will the changes be lost somewhere, or go back to master?

Answer 1

Switch to the master branch and run the command git merge update.