Type

(all (K V) (-> (hash-t K V) K (maybe-t V)))

Description

Look up a key, returning a (just V) if found or nothing if not found.

Examples

(hash-get-maybe (@hash 1 "a" 2 "b" 3 "c") 2)  ;; => (just "b")
(hash-get-maybe (@hash 1 "a" 2 "b" 3 "c") 4)  ;; => nothing