lookup

lookup<K>(key): <V>(m) => Maybe<V>

Defined in: Utils/Dict.ts:119

Looks up a value by key, returning Some(value) if found and None if not.

Type Parameters

K

K

Parameters

key

K

Returns

<V>(m): Maybe<V>

Type Parameters

V

V

Parameters

m

ReadonlyMap<K, V>

Returns

Maybe<V>

Example

pipe(Dict.fromEntries([["a", 1]]), Dict.lookup("a")); // Some(1)
pipe(Dict.fromEntries([["a", 1]]), Dict.lookup("b")); // None