User blog:Superwatery/Undo vs. Revert

There is a difference between "undo" and "revert".

Undo means to erase current edit and shows the  last edit. For example, see here (don't worry, this is a sample, so don't try to revert or undo it below):
 * (cur | prev)  18:41, October 14, 2018‎ YahirTheGoAnimator (wall | contribs | block)‎ . . (3,614 bytes) (+39)‎ . . (Adding categories) (undo)
 * (cur | prev)  18:41, October 14, 2018‎ YahirTheGoAnimator (wall | contribs | block)‎ . . (3,575 bytes) (+18)‎ . . (Adding categories) (undo)
 * (cur | prev)  18:39, October 14, 2018‎ YahirTheGoAnimator (wall | contribs | block)‎ . . (3,557 bytes) (+50)‎ . . (Adding categories) (undo)
 * (cur | prev)  18:38, October 14, 2018‎ YahirTheGoAnimator (wall | contribs | block)‎ . . (3,507 bytes) (+37)‎ . . (Adding categories) (undo)
 * (cur | prev)  18:35, October 14, 2018‎ YahirTheGoAnimator (wall | contribs | block)‎ . . (3,470 bytes) (+26)‎ . . (Adding categories) (undo)
 * (cur | prev)  23:27, September 19, 2018‎ Aaron Boys (wall | contribs | block)‎ m . . (3,444 bytes) (+43)‎ . . (undo)

Okay. For example, if the current edit: ((cur | prev)  18:41, October 14, 2018‎ YahirTheGoAnimator (wall | contribs | block)‎ . . (3,614 bytes) (+39)‎ . . (Adding categories) (undo)) is incorrect or you don't like it, you click undo and it will move into: (cur | prev)  18:41, October 14, 2018‎ YahirTheGoAnimator (wall | contribs | block)‎. . (3,575 bytes) (+18)‎. . (Adding categories) (undo). However, you cannot undo edit between "one edit before current" to "the oldest edit" of that page. Undoing edit can only undo once. If you keep on undoing the most recent edit, you are undoing from now to one edit before and one edit before now and continue for ever and ever until the next person edits the same page.

Reverting edit means to return edit(s) all the way to the last different contributor. For example, look on the last contributor who edited this page before current one. It was Aaron Boys. He is a contributor who edited this page before YahirTheGoAnimator. So if you revert the current one, the page will ended up the same as: (cur | prev)  23:27, September 19, 2018‎ Aaron Boys (wall | contribs | block)‎ m . . (3,444 bytes) (+43)‎. . (undo). Again, you cannot revert more than once in the same page at the same time until next person edit the same page.