ios - Compare two version strings in Swift

Question

I have two different app version Strings (i.e. "3.0.1" and "3.0.2").

How can compare these using Swift?

Answer 1

Ended up having to convert my Strings to NSStrings:

if storeVersion.compare(currentVersion, options: NSStringCompareOptions.NumericSearch) == NSComparisonResult.OrderedDescending {
       println("store version is newer")
}

Swift 3

let currentVersion = "3.0.1"
let storeVersion = "3.0.2"

if storeVersion.compare(currentVersion, options: .numeric) == .orderedDescending {
    print("store version is newer")
}