whenOrNull<R> method

R? whenOrNull<R>({
  1. R onLoading(
    1. L? loading
    )?,
  2. R onError(
    1. dynamic error
    )?,
  3. R onData(
    1. V data
    )?,
})

Implementation

R? whenOrNull<R>(
        {R Function(L? loading)? onLoading,
        R Function(dynamic error)? onError,
        R Function(V data)? onData}) =>
    when(
        onLoading: onLoading ?? (_) => null,
        onError: onError ?? (_) => null,
        onData: onData ?? (_) => null);