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| let array: [String] = [] | |
| let array: Array<String> = [] | |
| let array = [String]() | |
| if array.count != 0 { | |
| // 配列が存在する時の処理 | |
| } | |
| if !array.isEmpty { | |
| // 配列が存在する時の処理 | |
| } |
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