git discard a commit code example

Example 1: git undo commit

# Uncommit the changes
git reset --soft HEAD~1

# Completely delete the changes
git reset --hard HEAD~1

Example 2: remove the commit from local

git reset --soft HEAD~1

Example 3: revert last commit

git reset HEAD~

Example 4: revert unpublished commits

git reset --hard <hash-or-ref>