Method flatMap

deps/undici/src/types/fetch.d.ts:74–74

(callbackfn: (value: T, index: number) => Iterator<U> | Iterable<U>)

  take(limit: number): SpecIteratorObject<T>;
  drop(count: number): SpecIteratorObject<T>;
  flatMap<U>(callbackfn: (value: T, index: number) => Iterator<U> | Iterable<U>): SpecIteratorObject<U>;
  reduce(callbackfn: (previousValue: T, currentValue: T, currentIndex: number) => T): T;
  reduce(callbackfn: (previousValue: T, currentValue: T, currentIndex: number) => T, initialValue: T): T;
  reduce<U>(callbackfn: (previousValue: U, currentValue: T, currentIndex: number) => U, initialValue: U): U;