FunctionalViewStyleEmpty.swift

import UIKit
import PlaygroundSupport

// 1. define style as function



// 2. make syntax readable



// 3. make parameter configurable



// 4. make same style reusable



// 5. generalize custom operators


class ViewController : UIViewController {
    override func loadView() {
        self.view = UIView()
        self.view.backgroundColor = .darkGray
        
        let someView = UIView()
        someView.frame = CGRect(x: 37.5, y: 200, width: 300, height: 300)
        someView.backgroundColor = .white
        view.addSubview(someView)
        
        // 1
        
        // 2
        
        // 3
        
        // 4
        
    }
}

PlaygroundPage.current.liveView = ViewController()