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型がなくてもできそう
def foo(ids) already_done_something_ids = [] ids.each do |id| next if already_done_something_ids.include? id do_something id end end
ここでalready_done_something_ids は Array よりも Set のほうが良さそう
already_done_something_ids
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型がなくてもできそう
ここで
already_done_something_ids
は Array よりも Set のほうが良さそうThe text was updated successfully, but these errors were encountered: