This micro-library is made for you if:
- You have ever written something like this:
let interval: TimeInterval = 10 * 60To represent 10 minutes.
import Time
let tenMinutes = 10.minutes
let afterTenMinutes = Date() + 10.minutes
let tenMinutesAndSome = 10.minutes + 15.seconds
let tenMinutesInSeconds = 10.minutes.inSeconds
if 10.minutes > 500.seconds {
print("That's right")
}Time is not just a bunch of Double conversion functions. The main advantage of it is that all time units are strongly-typed. So, for example:
let tenMinutes = 10.minutesHere tenMinutes will actually be of type Interval<Minute> (not to be confused with Foundation's TimeInterval). There are seven time units available, from nanoseconds to days:
public extension Double {
var seconds: Interval<Second> {
return Interval<Second>(self)
}
var minutes: Interval<Minute> {
return Interval<Minute>(self)
}
var milliseconds: Interval<Millisecond> {
return Interval<Millisecond>(self)
}
var microseconds: Interval<Microsecond> {
return Interval<Microsecond>(self)
}
var nanoseconds: Interval<Nanosecond> {
return Interval<Nanosecond>(self)
}
var hours: Interval<Hour> {
return Interval<Hour>(self)
}
var days: Interval<Day> {
return Interval<Day>(self)
}
}You can perform all basic arithmetic operations on time intervals, even of different units:
let interval = 10.minutes + 15.seconds - 3.minutes + 2.hours // Interval<Minute>
let doubled = interval * 2
let seconds = 10.seconds + 3.minutes // Interval<Second>You can also use these operations on Date:
let oneHourAfter = Date() + 1.hoursTime intervals are easily convertible:
let twoMinutesInSeconds = 2.minutes.inSeconds // Interval<Second>You can also convert intervals to Foundation's TimeInterval, if needed:
let timeInterval = 5.minutes.timeIntervalYou can also use converted(to:) method:
let fiveSecondsInHours = 5.seconds.converted(to: Hour.self) // Interval<Hour>
// or
let fiveSecondsInHours: Interval<Hour> = 5.seconds.converted()Although, in my opinion, you would rarely need to.
You can compare different time units as well
50.minutes < 1.hourIf, for some reason, you need to create your own time unit, that's super easy to do:
public enum Week : TimeUnit {
public static var toTimeIntervalRatio: Double {
return 604800
}
}Now you can use it as any other time unit:
let fiveWeeks = Interval<Week>(5)For the sake of convenience, don't forget to write those handy extensions:
public enum Week : TimeUnit {
public static var toTimeIntervalRatio: Double {
return 604800
}
}
extension Interval {
public var inWeeks: Interval<Week> {
return converted()
}
}
extension Double {
public var weeks: Interval<Week> {
return Interval<Week>(self)
}
}
extension Int {
public var weeks: Interval<Week> {
return Interval<Week>(Double(self))
}
}Also available:
- Get conversion rate:
let conversionRate = Hour.conversionRate(to: Second.self) // 3600.0- GCD integration:
DispatchQueue.main.asyncAfter(after: 5.seconds) {
// do stuff
}Time is in very early stage. Some stuff will probably be broken at some point.
Time is available through Carthage. To install, just write into your Cartfile:
github "dreymonde/Time" ~> 0.2.0You can also use SwiftPM. Just add to your Package.swift:
import PackageDescription
let package = Package(
dependencies: [
.Package(url: "https://github.com/dreymonde/Time.git", majorVersion: 0, minor: 2),
]
)
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