public static IAsyncObservable <Decimal> Average(this IAsyncObservable <Decimal> source)
{
if (source == null)
{
throw new ArgumentNullException(nameof(source));
}
return(Create <Decimal>(observer => source.SubscribeSafeAsync(AsyncObserver.AverageDecimal(observer))));
}
public static IAsyncObservable <Decimal> Average <TSource>(this IAsyncObservable <TSource> source, Func <TSource, Task <Decimal> > selector)
{
if (source == null)
{
throw new ArgumentNullException(nameof(source));
}
if (selector == null)
{
throw new ArgumentNullException(nameof(selector));
}
return(Create <Decimal>(observer => source.SubscribeSafeAsync(AsyncObserver.AverageDecimal(observer, selector))));
}