Function isNil

isNil<TSubject>(subject: Maybe<TSubject>): subject is Nil
Check if something is nil. Can be used as a typeguard.
Type Parameters
- TSubject
  The type of the subject.
Parameters
- subject: Maybe<TSubject>
  The subject that could be nil.
Returns subject is Nil
true if the subject is nil, false otherwise.
- Defined in source/data/nil.ts:22