- jso-apply/fallback JSO KEY FALLBACK #!rest ARGSprocedure
Applies the procedure (method) which is the value of KEY in JSO to JSO. Any trailing arguments are also passed. If there is no such key, the fallback procedure is invoked instead.
Applies the procedure (method) which is the value of KEY in JSO to JSO. Any trailing arguments are also passed. If there is no such key, the fallback procedure is invoked instead.