rajubd49

extension UIApplication {
    class func topViewController(base: UIViewController? = UIApplication.sharedApplication().keyWindow?.rootViewController) -> UIViewController? {
        if let nav = base as? UINavigationController {
            return topViewController(base: nav.visibleViewController)
        }
        if let tab = base as? UITabBarController {
            if let selected = tab.selectedViewController {
                return topViewController(base: selected)
            }
        }

rajubd49

import UIKit

var string = "1337"

func convert(string: String) -> Int? {
    
    var total = 0
    let valueMap = [
        "0" as Character : 0,
        "1" : 1,

rajubd49

import UIKit

// Linked List (Insert, Delete, Special insert)
class Node {
    let value: Int
    var nextNode: Node?
    
    init(value:Int, nextNode: Node?) {
        self.value = value
        self.nextNode = nextNode

rajubd49

Code review

12: MusicAlbum struct need to confirm Decodable protocol to decode response from url request
25: Initializer need to have albums initialized with default value like init(albums: [MusicAlbum] = [MusicAlbum]())
29: Function name should be in camel case instead of snake case
30: Url needs to be a valid format, otherwise url session will fail to load response 
33: Before sink, we need make sure to publish values from main thread using .received(on: DispatchQueue.main)
34: Need to check completion with .finished and .failure case to show appropriate error message if exists.
37: After line 37, we need to store cancellables instance in specified collection 
45: showDetailView needs to be a @State property, otherwise we can’t change it’s value inside struct