LINQ “zip” in String Array

Question

Say there are two arrays:

String[] title = { \"One\",\"Two\",\"three\",\"Four\"};
String[] user = { \"rob\",\"\",\"john\",\"\"};

I need to

Answer 1

As another addition to the previous answers, Zip is usually defined and used in conjunction with a Tuple type. This relieves the user of having to provide a resultSelector function.

public class Tuple // other definitions for higher arity
{
    public TItem1 Item1 { get; private set; }
    public TItem2 Item2 { get; private set; }

    public Tuple(TItem1 item1, TItem2 item2)
    {
        Item1 = item1;
        Item2 = item2;
    }
}

And hence:

public static IEnumerable> Zip
    (this IEnumerable first, IEnumerable second) 
{
    using (IEnumerator e1 = first.GetEnumerator())
    using (IEnumerator e2 = second.GetEnumerator())
    {
        while (e1.MoveNext() && e2.MoveNext())
            yield return new Tuple(e1.Current, e2.Current);
    }
}

I believe this is closer to what CLR 4.0 will have (though it may have the more flexible variety as well).