Book Image

The Ultimate iOS Interview Playbook

By : Avi Tsadok
Book Image

The Ultimate iOS Interview Playbook

By: Avi Tsadok

Overview of this book

As an iOS developer, you must possess a diverse skill set encompassing Swift coding, design knowledge, and mastery of development tools. And while the demand for iOS developers remains high, the competition for landing your dream job has intensified in recent years. Being a skilled iOS developer is no longer enough — acing interviews is now just as essential as having technical expertise. In The Ultimate iOS Interview Playbook, you'll discover innovative ways to stand out as an iOS developer and pass every job interview. It will guide you to build your developer brand and present your skills to potential employers. This comprehensive guide covers over 100 interview questions, from Swift fundamentals and frameworks to complex design patterns and app architecture. You'll learn how to approach coding assessments like a pro and avoid red flags that could hinder your chances of success. Drawing from the author’s experience of interviewing hundreds of iOS developers and having been a candidate themself, this book addresses the challenges of showcasing your skills and knowledge within a limited timeframe. By the end of this book, you'll be ready to excel in any iOS interview, demonstrating your strengths and confidently tackling even the most challenging questions, ultimately paving the way to secure the job you've always wanted.
Table of Contents (20 chapters)
Part 1: Everything about Interviews
Part 2: Swift Language and Coding
Part 3: The Frameworks
Part 4: Design and Architecture

Expertise in Combine

We already discussed declarative programming throughout this chapter, so now, let’s focus on the Combine framework for a second.

Apple introduced Combine in WWDC 2019 as part of the iOS 13 version. Combine is Apple’s response to other popular reactive frameworks, such as React and RxSwift.

The Combine framework helps developers build reactive applications with robust async operations and data updates.

There are three main components in Combine:

  • Publishers: A publisher is an object that emits a stream of values over time. Publishers can be thought of as a source of data, which can come from various sources, such as user input, network requests, or timers. Publishers can emit values of different types, such as integers, strings, or custom data types, and can emit an unlimited number of values or a finite number of values.
  • Operators: Operators are functions that can be used to transform, filter, or combine streams of values emitted...