git - Confused how to revert all files as per master branch -

i created new branch (git branch working) , switched branch (git checkout working). added new files/folders , edited existing files.

now want how things before creating 'working' branch. ie: want remove new files/folders added, , undo changes made existing files.

i checked out master (checkout master) nothing reverted how was. im misunderstanding here. if git status while on 'master' branch get:

changes not staged commit:   (use "git add/rm <file>..." update committed)   (use "git checkout -- <file>..." discard changes in working directory)       here existing files edited  untracked files:   (use "git add <file>..." include in committed)       here new files/folders added 

i thought checking out master, revert before created 'working' branch. need @ point?

also, once i've reverted how in master,...what if wanted checkout 'working' again. new files/folders , changes there still? (ie: swap between master / working needed)

what need @ point?

you need checkout working branch, add changes there , commit them. 'registered' branch.

after can checkout master , in original state without changes.

it not work because have not committed changes, , changes in working directory not discarded when changing branches brought on master branch during checkout.

also, once i've reverted how in master,...what if wanted checkout 'working' again. new files/folders , changes there still?

yes, because commit changes on working branch.