filterIn (method)

Abstract filterIn

• filterIn<U>(this, f): Opt<U[]>

• Filters each element of an array inside the Opt, returning an Opt of the array with elements that pass the test implemented by the provided function.

  Type Parameters

  • U

  Parameters

  • this: Opt<U[]>

  • f: ((x) => boolean)

    • • (x): boolean

      • Parameters

        • x: U

        Returns boolean

  Returns Opt<U[]>

  Example

  opt([1, 2, 3]).filterIn(x => x > 1) // Some([2, 3])