How to make GIT ignore my changes

Question

Using just

git checkout .

will discard any uncommitted changes in the current directory (the dot means current directory).

EDIT in response to @GokulNK:

If you want to keep those changes for future use, you have 2 options:

git stash: this will save those changes in a stack. You can apply the changes to your working copy later using git stash pop
git diff > changes.patch: This will save those changes to the file changes.patch. If you want to apply them to your working copy you can do so: git apply changes.patch.