回答編集履歴
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回答も追加
test
CHANGED
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@@ -63,3 +63,49 @@
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63
63
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console.log([0, 1, 1].push(2)); // 4
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64
64
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65
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```
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66
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---
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70
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71
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72
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73
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あら、コードが変わっちゃいましたね。
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74
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75
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では配列を返す版の回答を載せておきます。
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76
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77
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78
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79
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```JavaScript
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80
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81
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function factorial (n) {
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82
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83
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if (n <= 0) return [];
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84
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85
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if (n === 1) return [0];
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86
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87
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if (n === 2) return [0, 1];
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var ary = factorial(n - 1);
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ary.push(ary[n - 2] + ary[n - 3]);
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92
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return ary;
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94
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95
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}
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97
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console.log(factorial(0)); // []
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98
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99
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console.log(factorial(1)); // [0]
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101
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console.log(factorial(2)); // [0, 1]
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102
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103
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console.log(factorial(3)); // [0, 1, 1]
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104
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105
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console.log(factorial(4)); // [0, 1, 1, 2]
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106
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107
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console.log(factorial(5)); // [0, 1, 1, 2, 3]
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108
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109
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console.log(factorial(6)); // [0, 1, 1, 2, 3, 5]
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110
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```
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