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Jul 16th, 2019
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  1. def check(arr)
  2. if arrが2次元配列だったら # <= ここの条件の記述方法
  3. p "arrは2次元配列です"
  4. elsif arrが1次元配列だったら # <= ここの条件の記述方法
  5. p "arrは1次元配列です"
  6. end
  7. end
  8.  
  9. arr1 = Array.new(3, 0.0)
  10. p arr1
  11. check(arr1)
  12.  
  13. arr2 = Array.new(2).map{Array.new(3, 1.0)}
  14. p arr2
  15. check(arr2)
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