回答編集履歴
2
追記
test
CHANGED
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@@ -21,3 +21,27 @@
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21
21
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let activities: [Activity] //上で作った型の配列を作る
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22
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```
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27
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N番目の配列を消去するなら
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28
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```swift
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32
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activities.enumerated().filter{$0.offset != n}
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34
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35
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```
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36
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39
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並び替えは
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40
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```swift
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activities.sort(by: {$0.timestamp < $1.timestamp})
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44
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45
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```
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46
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47
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かな。
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1
追記
test
CHANGED
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File without changes
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