how to delete all local changes in git code example

Example 1: remove local changes git

git fetch  # will fetch the latest changes on the remote
git reset --hard origin/master # will set your local branch to match the representation of the remote just pulled down.

Example 2: git undo all changes

git reset --hard

Example 3: clear local changes in git

git checkout .

Example 4: git abort changes

git stash save --keep-index --include-untracked
You don't need to include --include-untracked if you don't want to be thorough about it.

After that, you can drop that stash with a git stash drop command if you like.