def count_code(str)
puts (str.index("code") + 1)
end
count_code("aaacodebbb")
出力結果
4
More than 3 years have passed since last update.
【Ruby】任意の文字列に"code"が、左から何文字目に出てくるかを返し、その数を出力するメソッドを作れ。
Last updated at Posted at 2021-05-12
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