Function isNil

packages/effect/src/List.ts:219–219

(self: List<A>)

 * @category refinements
 */
export const isNil = <A>(self: List<A>): self is Nil<A> => self._tag === "Nil"

/**
 * Returns `true` if the specified value is a `List.Cons<A>`, `false` otherwise.