More of a philosophical question, but having both haystack and needle set to `nil` will not pass: ``` want <nil> in <nil> ``` One could argue that `nil` doesn't include anything, but at the same time the values are matching.
More of a philosophical question, but having both haystack and needle set to
nilwill not pass:One could argue that
nildoesn't include anything, but at the same time the values are matching.