TheCodedSelf

import UIKit
import RxSwift
import RxCocoa

let button = UIButton()
button.rx.tap.bind {
    print("button tapped")
}

TheCodedSelf

import Foundation
import RxSwift

let cars = Observable.from(["Nissan", "Ford", "BMW"])
let tanks = Observable.from(["Tiger II", "T-44", "Panther"])
let bikes = Observable.from(["Ducati", "Honda", "Kawasaki"])

let landVehicles = Observable.of(cars, tanks, bikes).merge()

landVehicles.subscribe(onNext: { print($0) })

TheCodedSelf

class ViewController: UIViewController {

    func pickImage(fromSource sourceType: UIImagePickerControllerSourceType) {
        
        guard UIImagePickerController.isSourceTypeAvailable(sourceType) else { return }
        
        let imagePickerController = UIImagePickerController()
        imagePickerController.sourceType = sourceType
        imagePickerController.delegate = self
        present(imagePickerController, animated: true, completion: nil)

TheCodedSelf

@IBAction private func startToastAnimation(_ sender: Any) {
    
    let toastView = createToastView()
    view.addSubview(toastView)
    animate(toastView: toastView)
}

private func createToastView() -> UIView {
    // 1.
    let toastViewHeight = CGFloat(80)

TheCodedSelf

import urllib2, re

def find_email(url):
    hdr = {'User-Agent': 'Mozilla/5.0'}
    req = urllib2.Request(url, headers=hdr)
    try:
        f = urllib2.urlopen(req)
        s = f.read()
        emails = re.findall(r"[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,4}",s)
        return emails

TheCodedSelf

let actionButton = NSPopUpButton(frame: .zero, pullsDown: true)

view.addSubview(actionButton)
actionButton.translatesAutoresizingMaskIntoConstraints = false
NSLayoutConstraint.activate([
  actionButton.centerXAnchor.constraint(equalTo: view.centerXAnchor),
  actionButton.centerYAnchor.constraint(equalTo: view.centerYAnchor)
  ])

["Option 1", "Option 2", "Option 3"].forEach(actionButton.addItem)