Option<TCollection>.ValueOrEmpty()

[RyanMarcotte]

I don't generate Option<TCollection> very often, but when it happens I almost always end up transforming the Option.None case to an empty collection.

public static IEnumerable<T> ValueOrEmpty<T>(this Option<IEnumerable<T>> option)
{
    return option.ValueOrDefault(Enumerable.Empty<T>());
}

public static IReadOnlyCollection<T> ValueOrEmpty<T>(this Option<IReadOnlyCollection<T>> option)
{
    return option.ValueOrDefault(Array.Empty<T>());
}

public static T[] ValueOrEmpty<T>(this Option<T[]> option)
{
    return option.ValueOrDefault(Array.Empty<T>());
}

[JohannesMoersch]

I like this. I've added it to the Function 3 milestone. I don't remember. Are you one .NET Core or stuck on Framework?