aromal-sasidharan

import UIKit

var str = "Hello, playground"

protocol A {
    func hello()
}

protocol B: A {
    func hello2()

aromal-sasidharan

func passParam(student: (name: String, address: String, rollNo: String)?, param: (param3: String, param4: String, param5: String, param6: String)?) {

    print("student is")
    print(student ?? "Nodata")
    print("param is")
    print(param ?? "Nodata")
    

aromal-sasidharan

//: A UIKit based Playground for presenting user interface
  
import UIKit
import PlaygroundSupport
//
//class MyViewController : UIViewController {
//    override func loadView() {
//        let view = UIView()
//        view.backgroundColor = .white
//

aromal-sasidharan

protocol M {
    func convert(stringInt: [String]) -> [Int]
}
protocol W {
    func fetchDays() -> [String]
}
protocol I {
    var worker: W? {get set}

aromal-sasidharan

extension ObservableType {
    
    func flatMap<A: AnyObject, O: ObservableType>(weak obj: A, selector: @escaping (A, Self.E) throws -> O) -> Observable<O.E> {
        return flatMap { [weak obj] value -> Observable<O.E> in
            try obj.map { try selector($0, value).asObservable() } ?? .empty()
        }
    }
    
    func flatMapFirst<A: AnyObject, O: ObservableType>(weak obj: A, selector: @escaping (A, Self.E) throws -> O) -> Observable<O.E> {
        return flatMapFirst { [weak obj] value -> Observable<O.E> in

aromal-sasidharan

extension Reactive where Base: UITextField {
    
    public func validateWithRegex(value:String) -> ControlProperty<String?> {
        let original: ControlProperty<String?> = self.text
        
        let values: Observable<String?> = original.map { self.validate(text: $0, regex: value) }
        let valueSink: AnyObserver<String?> = original.mapObserver { $0 }
        return ControlProperty<String?>(values: values, valueSink: valueSink)
    }
    

aromal-sasidharan

import UIKit
@IBDesignable //desinagble in storyboard(view in storyboard)
class SampleView: UIView {
    
    /*
    // Only override draw() if you perform custom drawing.
    // An empty implementation adversely affects performance during animation.
    override func draw(_ rect: CGRect) {
        // Drawing code
    }