Calendar Changed in Swift 3?

问题

Hey so I'm working on this little app and I

let durationDateComponents = Calendar(identifier: Calendar.Identifier.gregorian).dateComponents([.year, .month, .day, .hour, .minute, .second], from: Date(), to: christmasDay, options: [])

What do I do here? I get that the error is pointing me to change something with the array, but what?

Thanks!

回答1:

Remove options. That's not part of dateComponents and thus the compiler is having trouble identifying the method.

let calendar = Calendar.current   // or, if you really need gregorian calendar regardless of the current calendar, `Calendar(identifier: .gregorian)`
let components = calendar.dateComponents([.year, .month, .day, .hour, .minute, .second], from: Date(), to: christmasDay)

If you remove options, the method is successfully identified and therefore it is able to correctly interpret the expression.

来源：https://stackoverflow.com/questions/40144465/calendar-changed-in-swift-3