swift中的timeIntervalSince1970属性在哪里

Question

I am trying to get the current milliseconds and according to all the questions on Google, i should use timeIntervalSince1970 property of NSDate

however i already did this:

var startTime = NSData()
and then
startTime. timeIntervalSince1970

and
startTime. timeIntervalSince1970()

but it seems there is no property anymore, right?

if yes, what is the replacement please?

Answer 1

The error is: NSDate not NSData .
Also there should not be space after the "."?

var startTime = NSDate() let interval = startTime.timeIntervalSince1970

From Apple docs:

var timeIntervalSince1970: NSTimeInterval { get }

This property's value is negative if the date object is earlier than January 1, 1970 at 12:00 am GMT.