回答編集履歴
2
ついか
test
CHANGED
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@@ -2,7 +2,7 @@
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2
2
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3
3
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4
4
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5
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-
a.filter { $0 >
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5
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+
a.filter { $0 > 0 }.forEach(intToText)
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6
6
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7
7
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8
8
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@@ -13,3 +13,17 @@
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13
13
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14
14
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15
15
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```
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16
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+
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17
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+
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18
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19
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+
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20
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21
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追加
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22
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+
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23
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+
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24
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25
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+
```swift
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26
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+
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27
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+
a.enumerated().filter { $0.element > 0 }.map { $0.offset }.map(intToText)
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28
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+
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29
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+
```
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1
修正
test
CHANGED
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@@ -8,7 +8,7 @@
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8
8
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9
9
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// intToText()が値を返し、かつその結果から配列を作りたいのなら
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10
10
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11
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-
let b = a.filter { $0 >
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11
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+
let b = a.filter { $0 > 0 }.map(intToText)
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12
12
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13
13
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14
14
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