revert discard changes git code example

Example 1: git discard changes

git checkout .

Example 2: how to remove file changes in git

git clean -df
git checkout -- .

Example 3: git remove my local changes and pull from master

git reset --hard <your commit hash key>

Example 4: git discard changes

Undoing the changes in the working directory
Use the checkout command in order to checkout the repository’s version.

RUN:
git checkout hello.html