class Hoge { var array = [0,1,2,3,4,5,6,7,8,9] func fuga() { array.forEach { [weak self] in print($0) self?.array.append($0 * 10) } } } let hoge = Hoge.init() hoge.fuga()class Hoge { var array = [0,1,2,3,4,5,6,7,8,9] func fuga() { array.forEach { [weak self] in print($0) self?.array.append($0 * 10) } } } let hoge = Hoge.init() hoge.fuga()0 1 2 3 4 5 6 7 8 9