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@ken0nek

【Swift】Int型の数字から[Int]型の配列を生成する。数字を桁ごとに分ける。

Last updated at Posted at 2015-08-16

Swift 2 & Swift 3 & Swift 4


let num = 1234
let numList = "\(num)".characters.flatMap { Int("\($0)") }
// let numList = String(num).characters.flatMap { Int(String($0)) }

print(numList)
// [1, 2, 3, 4]

Swift3でも動作することを確認。(2016/09/28）
Swift4で動作確認。（2017/10/04）

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