从两个不同的字典数组中删除共同值

Question

我有2个字典数组：

serverContactsDict = [["name": “Miya”,”number": “4178547852”],
                      [“name": “Simon”,”number": “2458741458”],
                      ["name": “Pio”,”number": “7414785236”]]

和

phoneContactsDict = [["name": “Miya”,”number": “4178547852”],
                     [“name": “Simon”,”number": “2458741458”],
                     ["name": “Pio”,”number": “7414785236”],
                     ["name": “Kayle”,”number": “2547859632”],
                     ["name": “Hoya”,”number": “7485965841”]]

和

DesiredDict = [["name": “Kayle”,”number": “2547859632”],
               ["name": “Hoya”,”number": “7485965841”]]

尝试了很多，但没有得到想要的结果。

Answer 1

let desiredDict = phoneContactsDict.filter {
  let dict = $0
  return !serverContactsDict.contains{ dict == $0 }
}