how to go back to previous commit in git and comeback code example

Example 1: after checking out a previous commit go back to latest commit

git checkout <commit hash>	# go to previous commit
git revert <commit hash>  	# revert action of going to previous commit

Example 2: git go back to previous commit

git checkout 12feg3435 #commit ID

Example 3: how to go to a previous commit state

# This will detach your HEAD, that is, leave you with no branch checked out:
git checkout 0d1d7fc32