Hi,

I appreciate the comparison to Ruby on page 15, but I find it rather misleading, as you can solve the problem of number of lines in file in a manner much closer to the proposed Scala solution by simply doing a:

src = File.new("someFile.txt")
count = (src.lines.map { |x| 1 }).inject(:+)

or, if you want, as the following one-liner:

count = (File.new("someFile.txt").lines.map {1}).inject(:+)

Thanks.

Morten

Yeah, and the scala example doesn't seem the best either.

val count = scala.io.Source.fromFile("test.txt").getLines().size

My intention was not showing how much better Scala is from Ruby but rather that it could be very similar to Ruby but still be statically typed checked. I hope that was clear from the text. Thanks for the input. I will make sure I use the right now for the 2nd edition.