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 124
Checking that input is what you expected.
In the browser it is a courtesy that makes things pleasant. On the server it is a control, because requests do not have to come from your form. You need both, ideally from one shared schema so they cannot disagree.
See also Server function, Search params, Client
Running old and new API shapes side by side.
Offering /v1 and /v2 so existing callers keep working while new ones use the new shape. The same expand-then-contract idea as a safe schema migration, applied to an API.
See also Breaking change, Deprecation