In Ruby, is there an Array method that combines 'select' and 'map'?

Question

I have a Ruby array containing some string values. I need to:

1. Find all elements that match some predicate
2. Run the matching elements through a transfo

Answer 1

No, but you can do it like this:

lines.map { |line| do_some_action if check_some_property  }.reject(&:nil?)

Or even better:

lines.inject([]) { |all, line| all << line if check_some_property; all }