In various software there are actions you cannot undo. Most prominent, for me, is deleting a worksheet in Excel – meanwhile in Google Sheets it’s perfectly able to restore a deleted sheet.
In software engineering terms, why do such actions exist? Why is it impossible to undo these actions?
Thanks.
In: Technology
In software, you can store stuff that the user doesn’t see right now.
For things that can be undone, either the whole previous thing was stored, or the changes made since a stored thing were stored.
So you either go back to the previous stored things, or undo the changes in order.
For things that cannot be undone, nothing of the previous thing was stored.
Or it was stored then deleted.
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