回答編集履歴
1
reduce
test
CHANGED
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@@ -17,3 +17,17 @@
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17
17
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return (0..<length).map { print($0); return getRandomCharacter() }.joined()
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18
18
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```
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20
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【追記】
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24
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25
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後れを取ってしまったのでreduceいっときます！
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26
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27
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```swift
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30
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31
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return (0..<length).reduce("") { (result, _) in result + getRandomCharacter() }
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32
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33
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```
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