ローマ字をあいうえお順にソート

aiueo_order.rb

aiueo = "aiueokgsztdnhbpmyrw"
alpha = "a-s"

nogizaka = %w(shiraishimai akimotomanatsu matsumurasayuri ikomarina hatanakaseira itounene itoumarika itoukarin itoujunna ikutaerika)

puts nogizaka.sort_by { |name| name.tr(aiueo, alpha) }

# => akimotomanatsu
# => ikutaerika
# => ikomarina
# => itoukarin
# => itoujunna
# => itounene
# => itoumarika
# => shiraishimai
# => hatanakaseira
# => matsumurasayuri