VersionCompare.swift

extension String {
    func compareVersion(version: String) -> Bool {
        let versions = version.components(separatedBy: ".")
        let selfVersion = components(separatedBy: ".")
        for index in 0 ..< versions.count {
            var isGreaterThan = false
            if versions[index] <= selfVersion[index] {
                isGreaterThan = true
            }
            if !isGreaterThan {
                return false
            }
        }
        return true
    }
}