从日期获取工作日 - Swift 3 [英] Get Weekday from Date - Swift 3

问题描述

我环顾四周，但没有在 swift 3 中找到一个快速答案.我今天的工作日是这样的:

I have looked around a bit, but didnt find a quick answer for this in swift 3. I get todays weekday like this:

let weekday = Calendar.current.component(.weekday, from: Date())

但相反，我想获取给定日期的工作日.这是怎么做的?谢谢

But instead, i would like to get the weekday of a given date. How is this done? Thanx

推荐答案

想必你已经有了一个Date?

let weekday = Calendar.current.component(.weekday, from: myDate)

也许您想要工作日的名称?

Maybe you want the name of the weekday?

let f = DateFormatter()

f.weekdaySymbols[Calendar.current.component(.weekday, from: Date()) - 1]

最后添加 -1 是因为 Calendar.current.component(.weekday, from: Date()) 返回 1-7 之间的值，但 weekdaySymbols 需要数组索引.

The -1 is added at the end because Calendar.current.component(.weekday, from: Date()) returns values from 1-7 but weekdaySymbols expects array indices.

调查 NSCalendar/DateComponents api 或编辑您的问题以使其更具体，如果您需要 DateComponents api 的帮助.

Investigate the NSCalendar/DateComponents api or edit your question to be more specific if you need help with the DateComponents api.

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