Function filterMap

packages/effect/src/Micro.ts:4002–4023

(
  iterable: Iterable<A>,
  f: (a: NoInfer<A>) => Micro<Option.Option<B>, E, R>,
  options?: {
    readonly concurrency?: Concurrency | undefined
  }
)

 * @category collecting & elements
 */
export const filterMap = <A, B, E, R>(
  iterable: Iterable<A>,
  f: (a: NoInfer<A>) => Micro<Option.Option<B>, E, R>,
  options?: {
    readonly concurrency?: Concurrency | undefined
  }
): Micro<Array<B>, E, R> =>
  suspend(() => {
    const out: Array<B> = []
    return as(
      forEach(iterable, (a) =>
        map(f(a), (o) => {
          if (o._tag === "Some") {
            out.push(o.value)
          }
        }), {
        discard: true,
        concurrency: options?.concurrency
      }),
      out
    )
  })

// ----------------------------------------------------------------------------
// do notation