Ruby - Enumerable - collect
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def rot13(secret_messages)
# your code here
# using the ord method in ruby for determine the char ASCII number
secret_messages.map do |x|
if x.ord >= "A".ord && x.ord <= "M".ord then
(x.ord+13).chr
elsif x.ord >= "N".ord && x.ord <= "Z".ord then
(x.ord-13).chr
elsif x.ord >= "a".ord && x.ord <= "m".ord then
(x.ord+13).chr
elsif x.ord >= "n".ord && x.ord <= "z".ord then
(x.ord-13).chr
else
x
end
end
end
answer = rot13("Why did the chicken cross the road?".chars)
puts answer.join()
answer = rot13("Gb trg gb gur bgure fvqr!".chars)
puts answer.join()
Ruby
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