Function unappend

packages/effect/src/Array.ts:1051–1053

(
  self: NonEmptyReadonlyArray<A>
)

 * @since 2.0.0
 */
export const unappend = <A>(
  self: NonEmptyReadonlyArray<A>
): [arrayWithoutLastElement: Array<A>, lastElement: A] => [initNonEmpty(self), lastNonEmpty(self)]

/**
 * Returns the first element of an array safely wrapped in `Option.some`, or