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- def check(arr)
- if arrが2次元配列だったら # <= ここの条件の記述方法
- p "arrは2次元配列です"
- elsif arrが1次元配列だったら # <= ここの条件の記述方法
- p "arrは1次元配列です"
- end
- end
- arr1 = Array.new(3, 0.0)
- p arr1
- check(arr1)
- arr2 = Array.new(2).map{Array.new(3, 1.0)}
- p arr2
- check(arr2)
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