Variable flatMap`Const`

flatMap: <T, U>(fn: (t: T) => Promise<U>) => (t: Promise<T>) => Promise<U> = ...

Maps and flatten an item in the promise by fn.

Type Declaration

- <T, U>(fn: (t: T) => Promise<U>): (t: Promise<T>) => Promise<U>
- Type Parameters
  - T
  - U
  Parameters
  - fn: (t: T) => Promise<U>
    The function to transform T into U.
  Returns (t: Promise<T>) => Promise<U>
  The transformed promise.