Best way to compare "versioning" strings in Swift

Question

I need to compare 2 strings that represent versions, like 1.2.4 and 2.3.6. I'd like to know if already exists some similar implementation in swift. Maybe something similar to the systemInfo function for UIDevice. If not, which is in your opinion a good way to perform this check?

Answer 1

A good way is the compare: method with option .NumericSearch

let version1 = "1.2.4"
let version2 = "2.3.6"

let result = version1.compare(version2, options: .numeric)
switch result {
case .orderedSame : print("versions are equal")
case .orderedAscending : print("version1 is less than version2")
case .orderedDescending : print("version1 is greater than version2")
}