What is the C# equivalent of map function in Haskell

Question

map function in Haskell has two input parameters. The first parameter is a function and second parameter is a list. The map function applies the function passed as input paramet

Answer 1

Select

MSDN Reference

See my question here (Only if you are curious as it is not directly related).

Answer 2

Since Select and SelectMany were already mentioned, I'll answer an additional question you didn't ask: fold is found as Aggregate.

Now everyone reading this should be fully equipped to go be That Guy who writes Language X using Language Y idioms... so for the sake of your fellow C# programmers, don't get too carried away.

Answer 3

Another alternative to Select and SelectMany is to write your own extension method.

public static IEnumerable<U> Map<T, U>(this IEnumerable<T> s, Func<T, U> f)
{
  foreach (var item in s)
    yield return f(item);
}

Thanks Wes Dyer for this sweet extension method! :) See post for more details.

Answer 4

How about ConvertAll? It looks like Closest to Map.

Answer 5

And to answer a question you didn't ask, the Haskell equivalent of binding the "sequence" monad is called SelectMany in C#. See Wes Dyer's great article on this for details:

http://blogs.msdn.com/wesdyer/archive/2008/01/11/the-marvels-of-monads.aspx