Function onItem

packages/effect/src/internal/effect.ts:4895–4904

(
    state: {
      readonly f: (a: any, i: number) => Effect.Effect<any, any, any>
      readonly out: Array<any> | undefined
    },
    item,
    index
  )

const forEachConcurrent = iterateEagerImpl({
  onItem(
    state: {
      readonly f: (a: any, i: number) => Effect.Effect<any, any, any>
      readonly out: Array<any> | undefined
    },
    item,
    index
  ) {
    return state.f(item, index)
  },
  step(state, _, exit, index) {
    if (exit._tag === "Failure") return exit
    else if (state.out) {