LINQ equivalent of foreach for IEnumerable

Sunday, 6 November 2016

I'd like to do the equivalent of the following in LINQ, but I can't figure out how:

IEnumerable items = GetItems();
items.ForEach(i => i.DoStuff());

What is the real syntax?

Answer

There is no ForEach extension for IEnumerable; only for List. So you could do

items.ToList().ForEach(i => i.DoStuff());

Alternatively, write your own ForEach extension method:

public static void ForEach(this IEnumerable enumeration, Action action)

{
    foreach(T item in enumeration)
    {
        action(item);
    }
}

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