ios - 快速从数组中获取开始日期和结束日期之间的日期

Question

由于我是 swift 新手，我在这里停留了很长时间，我试图从开始日期和结束日期之间的数组中获取日期。

我已经尝试过从[https://stackoverflow.com/questions/10216991/fetching-dates-which-comes- Between-startdate-and-enddate]引用的这些代码，但我收到错误因为“‘[Date]’类型的值没有‘过滤’成员”。

快速

var predicate = NSPredicate(format: "(SELF > %@) AND (SELF < %@)", startdate!, enddate!)
var result = arrayWithDates.filtered(using: predicate)

Expected output: 
dateArray = ["12/01/1996","13/01/1996","15/01/1996","17/01/1996"]
startdate = "13/01/1996" 
enddate = "17/01/1996"
output = ["13/01/1996","15/01/1996","17/01/1996"]

请帮助我实现这一点，提前致谢

Answer 1

你可以这样做:

import Foundation

let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "dd/MM/yyyy"
dateFormatter.timeZone = TimeZone(abbreviation: "GMT")

let dateArray = ["12/01/1996","13/01/1996","15/01/1996","17/01/1996"]
let startdate = dateFormatter.date(from: "13/01/1996")!
let enddate = dateFormatter.date(from: "17/01/1996")!

let output = dateArray
    // Map your strings to Date objects excluding nils.
    .compactMap { dateFormatter.date(from: $0) }
    // Filter the mapped array by your condition.
    .filter { $0 >= startdate && $0 <= enddate }