KeyType => unknown => ValueType
Returns the value of a specific key on an iterable. If no key is found it returns undefined. If the second argument isn't an iterable we return undefined, to allow for graceful failure.
get("aaa")({aaa: "1"}) // "1"
get("bbb")({aaa: "1"}) // undefined
get("bbb")(undefined) // undefined
get(0)(["aaa"]) // "aaa"