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[学習確認用] Ruby 配列の中からランダムな値を一つ抜き取る

配列の中からランダムな値を一つ抜き出す。

number = [1, 3, 4, 5, 11, 12]
nunber_count = number.count
puts number_count

1.times do
     puts number[rand(number_count)]
end

number_count の所は数字でもいけるが配列の数より大きい値を入れると空の値を抜き出してしまうから今回は配列の数をランダムの数に入れている。

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