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

Preparing for dictionary- and set-related interview questions

Dictionaries and sets are both highly effective data structures that enable fast storage, retrieval, and data manipulation. In particular, dictionaries offer the ability to store data using a key-value format, and they also serve as the foundation to encode and decode complex data structures.

As an iOS developer, there are some use cases where we can use dictionaries in our projects:

  • Quick lookup: Dictionaries are excellent to save and retrieve data quickly, since they use key-value to store data. This makes dictionaries ideal to save user accounts, lists of settings, cache data, and so on.
  • Counting and frequency tracking: When the dictionary key represents the item’s type, and the value is the number of instances of that type, we can use it to track the frequency of words, items, and so on.
  • Encoding and decoding complex data structures: Dictionaries are so flexible that we can store almost any...