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#iOS Interview

1. Snippets

• Какие есть проблемы с этим кодом?

// OTTAvatarView.h

#import <UIKit/UIKit.h>

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###Object introspection

- (id)_shortMethodDescription;
- (id)_methodDescription;
- (id)__methodDescriptionForClass:(Class)arg1;
- (id)_ivarDescription;
- (id)__ivarDescriptionForClass:(Class)arg1;

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#Repo Decoration

Markdown

• Cheatsheet https://github.com/adam-p/markdown-here/wiki/Markdown-Cheatsheet

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##Primary Way

#define str_mk(name, ...) _##name; struct { char __VA_ARGS__; } name; char __##name
#define _(name, ...) char str_mk(name, ##__VA_ARGS__);
#define __(name, ...) str_mk(name, ##__VA_ARGS__)
#define ___(name, ...) str_mk(name, ##__VA_ARGS__)
#define ____(name) str_mk(name, dummy)

_(OTTDefaultTweakLib,

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Pick the range of commits (from A to B inclusive) from source branch and apply to destination branch

• cherry-pick

  • git cherry-pick A~..B or
  • git cherry-pick A^..B (NB: Use A\\^ when using Oh-My-ZSH)

• rebase
  0. Checkout a new temporary branch at the current location
  git checkout -b tmp

0. Move the destination branch to the head of the new patchset

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static const char kNotAParen = 0;

static inline BOOL isOpenParen(char paren) {
    return paren == '[' || paren == '(' || paren == '{';
}

static inline BOOL isCloseParen(char paren) {
    return paren == ']' || paren == ')' || paren == '}';

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Structure

Entities

• Message<ContentT> (заворачиваем в AnyMessage)
• ChatNotification
• ChatAccessory

Models

• MessageStore — основная модель. Redux Store (cостоит из компонент State, Action и Reducer). Для удобста компоненты разбиты на Local и Feed составляющие. Принцип работы:

1. Клиент посылает экшн стору: store.dispatch(.someAction(someParam))

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Airbnb Swift Style Guide

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Styling Kit

Consists of Style (just a function) and UIView extension

public typealias Style<ViewT> = (ViewT) -> Void

public protocol Stylable {}

public extension Stylable {
    @discardableResult

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import Foundation
import UIKit

import RxSwift
import SnapKit

final class TemplateView: UIView, StatefulComponent {
    var state: State? {
        didSet { stateDidChange(from: oldValue) }
    }