如何将数组拆分为(相等)块

下面有很多代码将数组分割成块,但我想将数组分割成相等的块(如果奇数大于1块可能不相等)。

let array = [21.0, 72.0, 44.0, 56.0, 18, 68.0, 54.0, 35.0, 27.0]

let test = array.chunks(4)
print(test)

以下是回报: [[18.0, 21.0, 27.0, 35.0], [44.0, 54.0, 56.0, 68.0], [72.0]]

但我希望它能回来: [[18.0, 21.0, 27.0], [35.0, 44.0, 54.0], [56.0, 68.0, 72.0]]

extension Array {
    func chunked(into size: Int) -> [[Element]] {
        return stride(from: 0, to: count, by: size).map {
            Array(self[$0 ..< Swift.min($0 + size, count)])
        }
    }
}