Glossary
Every term the courses use, defined in one line and then in a paragraph. Written to be read out of order.
Showing 2 of 2 matching “Optimistic update”
Showing the result before it is confirmed.
Updating the screen immediately on the assumption the request will succeed, reverting if it does not. Right for likes and checkboxes, wrong for payments and deletions. The revert path is the one nobody tests.
See also Pending state, Rollback
Shown, but not yet confirmed.
The honest middle ground for an optimistic update: display the change immediately, but mark it as unconfirmed. A failure then becomes a change of state rather than a contradiction.
See also Optimistic update, Loading state