LINQ side effects

You can use the List<T>.ForEach method.

l.ForEach(i => Console.WriteLine(i));

There is no Linq equivalent of foreach, although it is fairly easy to implement one yourself.

Eric Lippert gives a good description here of why this was not implemented in Linq itself.

However, if your collection is a List (which it appears to be in your example), you can use List.ForEach:

myList.ForEach(item => Console.WriteLine(item));

Use List.ForEach instead.

For any IEnumerable, you can do:

items.Any(item =>
{
    Console.WriteLine(item);
    return false;
}

But this would be utterly wrong! It's like using a shoe to hammer the nail. Semantically, it does not make sense.

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