Functional C# - Learn from F# and LINQ

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re: Functional C# - Learn from F# and LINQ

podwysocki — Thu, 19 Jun 2008 18:20:20 GMT

@Richard

It can't work using folding on any infinite list, left or rightwise. That's the gist of what I was saying. Hence why I was using an IList or an array of T for that.

What I was saying is that you could fold right an IEnumerable<T> if you just reverse the list through:

Enumerable.Range(1, 10).Reverse().Aggregate((acc, x) => acc + x);

Matt

re: Functional C# - Learn from F# and LINQ

Richard — Thu, 19 Jun 2008 00:53:01 GMT

How could any implementation of FoldRight work on an infinite list?

re: Functional C# - Learn from F# and LINQ

podwysocki — Tue, 17 Jun 2008 22:00:21 GMT

@Joe

Yes, I already sited both List<T>.ForEach and Array.ForEach<T> as examples that are already implemented, but the by index were not.

I agree that F# is more than just FP, as it does more with immutability, plus the metaprogramming, the concurrency through workflows and so on are a pretty compelling story that gets lots sometimes.

Matt

re: Functional C# - Learn from F# and LINQ

podwysocki — Tue, 17 Jun 2008 21:58:19 GMT

@Michael

I agree, there's nothing wrong with it, and you can, but you have to go that extra step to initialize that index value and then populate, but sure, it is valid.

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