回答編集履歴
1
mapでよかった
answer
CHANGED
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@@ -9,9 +9,17 @@
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9
9
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//=> [(888, "Lv.88"), (999, "Lv.99"), (99, "Lv.50"), (50, "Lv.49"), (50, "Lv.30")]
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10
10
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```
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11
11
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12
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-
# zip
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12
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# zip + map
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13
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14
14
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```swift
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15
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let standardRankData2 = zip(standardRankDataScore, standardRankDataLevel).map {($0, $1)}
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16
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print(standardRankData2)
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17
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//=> [(888, "Lv.88"), (999, "Lv.99"), (99, "Lv.50"), (50, "Lv.49"), (50, "Lv.30")]
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18
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```
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19
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+
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20
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# zip + reduce
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21
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22
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```swift
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15
23
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let standardRankData2 = zip(standardRankDataScore, standardRankDataLevel).reduce(into: [(Int, String)]()) {$0.append(($1.0, $1.1))}
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24
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print(standardRankData2)
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17
25
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//=> [(888, "Lv.88"), (999, "Lv.99"), (99, "Lv.50"), (50, "Lv.49"), (50, "Lv.30")]
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