Interface PromiseLike<T>

then

• then<TResult1, TResult2>(onfulfilled?: ((value: T) => TResult1 | PromiseLike<TResult1>) | undefined | null, onrejected?: ((reason: any) => TResult2 | PromiseLike<TResult2>) | undefined | null): PromiseLike<TResult1 | TResult2>

• Attaches callbacks for the resolution and/or rejection of the Promise.

  Type parameters

  • TResult1

  • TResult2

  Parameters

  • Optional onfulfilled: ((value: T) => TResult1 | PromiseLike<TResult1>) | undefined | null

    The callback to execute when the Promise is resolved.

  • Optional onrejected: ((reason: any) => TResult2 | PromiseLike<TResult2>) | undefined | null

    The callback to execute when the Promise is rejected.

  Returns PromiseLike<TResult1 | TResult2>

  A Promise for the completion of which ever callback is executed.