It's just adding a syntactic construct to ruby which looks similar to haskells list comprehensions. Explanation for haskell: http://learnyouahaskell.com/startin

It's just adding a syntactic construct to ruby which looks similar to haskells list comprehensions. Explanation for haskell: http://learnyouahaskell.com/starting-out#im-a-list-comprehension http://learnyouahaskell.com/starting-out#im-a-list-comprehen...