Function none

Returns true if none of the elements in the array satisfy the predicate function.

Example

none((x: number) => x > 2)([1, 2, 3]) // false
none((x: number) => x > 2)([1, 2]) // true
none((x: number) => x > 2)([]) // true
  • none<A>(
        fn: (value: A) => boolean,
    ): <S extends readonly A[]>(source: S) => boolean

    Type Parameters

    • A

    Parameters

    • fn: (value: A) => boolean

    Returns <S extends readonly A[]>(source: S) => boolean