ruby - 如何将字符串切成对

Question

对于我正在做的项目，我需要根据输入进行配对，但我不知道如何做，我需要一些帮助。
怎么样:

2209222717080109

我希望它变成怎样:

["22","09","22","27","17","08","01","09"]

Answer 1

"2209222717080109".scan /../
  #=> ["22", "09", "22", "27", "17", "08", "01", "09"]