atimca

struct AppState {
    var user: User
    var newsState: NewsState?
}
enum AppEvent {
    case newUserWasLoaded(User)
    case newsEvents(NewsEvent)
}

atimca

struct AppState {
    var user: User
}
enum AppEvent {
    case newUserWasLoaded(User)
}
extension AppEvent {
    static func reduce(state: AppState, event: AppEvent) -> AppState {
        var state = state
        switch event {

atimca

struct User {
    let id: AnyHashable
}
struct NewsState {
    var user: User
    var step: Step
}
extension NewsState {
    enum Step {
        case initial

atimca

import Combine
import Foundation

func loadNewsTitles() -> AnyPublisher<[String], Never> {
    ["title1", "title2"]
        .publisher
        .delay(for: .microseconds(500), scheduler: DispatchQueue.main)
        .collect()
        .eraseToAnyPublisher()
}

atimca

Twitter(.atimca)
.subscribe(onNext: { newArcticle in
    you.read(newArticle)
})

atimca

protocol Observer {
    func stateWasChanged(with newState: State)
}

struct State {
    var value: Int?

    static func reduce(state: State, event: Event) -> State {
        var state = state
        switch event {

atimca

class Store {
    func accept(event: Event) {
        state = reduce(state: state, event: event)
    }

    func reduce(state: State, event: Event) -> State {
        var state = state
        switch event {
        case .changeValue(let newValue):
            state.value = newValue

atimca

func reduce<Result>(_ initialResult: Result, _ nextPartialResult: (Result, Element) -> Result) -> Result

atimca

Question set for interviews

Developer

Tech
- [ ] How many projects do you have
- [ ] Which architectures approaches do you use
- [ ] Which swift version / legacy objc, c what are you going to do with it.
- [ ] Do you do layout in xibs or in code?
- [ ] What do you think about reactive programming (RxSwift)

atimca

import PlaygroundSupport
import Foundation

class WeakRef<T> where T: AnyObject {

    private(set) weak var value: T?

    init(value: T?) {
        self.value = value
    }