对字典数组排序（快速） [英] Sort an array of dictionary (swift)

问题描述

let unsorted = [{Name:Amy,age:20},{Name:Bill,age:20}]
let sortedDict = sorted(unsorted){a,b in return a.Name < b.Name}

如何根据Name键对未排序的数组排序？上面的代码似乎不起作用。

How can I sort the unsorted array according to the Name key? Above code seems doesn't work.

推荐答案

如果您使用的是自定义结构而不是a，则您的排序语法（几乎）有效字典

Your sorting syntax works (almost) if you are using a custom struct rather than a dictionary

struct Person {
  let name : String
  let age : Int
}

let unsortedPeople = [Person(name:"Bill", age:20), Person(name:"Amy", age:20)]

现在您可以使用 sorted 函数

let sortedDict = unsortedPeople.sorted{ $0.name < $1.name }

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