Rails Array method second/third/second_to_last

http://api.rubyonrails.org/classes/Array.html#method-i-second

[27] pry(main)> list = ["a", "b", "c", "d"]

=> ["a", "b", "c", "d"]

[28] pry(main)> list.first

=> "a"

[29] pry(main)> list.second

=> "b"

[30] pry(main)> list.third

=> "c"

[32] pry(main)> list.second_to_last

=> "c"