c# - Interleaved merge with LINQ?

Question

I'm currently experimenting a bit with LINQ. Let's say I have two collections of identical length:

var first = new string[] { "1", "2", "3" };
var second = new string[] { "a", "b", "c" };

I would like to merge those two collections into one, but in an interleaved fashion. The resulting sequence should thus be:

"1", "a", "2", "b", "3", "c"

What I've come up with so far is a combination of Zip, an anonymous type and SelectMany:

var result = first.Zip( second, ( f, s ) => new { F = f, S = s } )
                  .SelectMany( fs => new string[] { fs.F, fs.S } );

Does anybody know of an alternate/simpler way to achieve such an interleaved merge with LINQ?

Answer 1

The example you provided can by made simpler by dispensing with the anonymous type:

   var result = first.Zip(second, (f, s) => new[] { f, s })
                      .SelectMany(f => f);