Snippets

Swift

String from class

String(describing: type(of: <#Class#>))

Extract get parameters from URL

extension URL {
    func valueOf(_ queryParamaterName: String) -> String? {
        guard let url = URLComponents(string: self.absoluteString) else { return nil }
        return url.queryItems?.first(where: { $0.name == queryParamaterName })?.value
    }
}

Check if string start with specials char

guard !isEmpty, let firstChar = first else { return false }
return String(firstChar).range(of: ".*[^A-Za-z0-9].*", options: .regularExpression) != nil

Compare two class instances

enum Deeplink {
    case home
    case videos(Video)
    case preferences
    
    func associatedViewController() -> AnyClass {
        switch self {
            case .home:
                return KidsHomeViewController.self
            case .videos(_):
                return KidsVideoViewController.self
            case .preferences:
                return KidsPreferenceViewController.self
        }
    }
}

// Somewhere else
if myViewController.classForCoder == deeplink.associatedViewController() {
    // Some code
}

Prettry print JSON Data

extension Data {
    var prettyPrintedJSONString: NSString? { /// NSString gives us a nice sanitized debugDescription
        guard let object = try? JSONSerialization.jsonObject(with: self, options: []),
    let data = try? JSONSerialization.data(withJSONObject: object, options: [.prettyPrinted]),
    let prettyPrintedString = NSString(data: data, encoding: String.Encoding.utf8.rawValue) else { return nil }
    return prettyPrintedString
    }
}

Decodable object from file

   if let filepath = Bundle.main.path(forResource: "xyz", ofType: "json") {
    do {
                let contents = try String(contentsOfFile: filepath)
                let xyz = fromJSON(contents)
                return xyz as! TenantFile
            } catch {
                fatalError()
            }
        } else {
           fatalError()
        }