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

Working with the filesystem

There’s a common assumption that iOS “doesn’t have a filesystem.” And even though there is a Files app, it is true that the filesystem is almost hidden for most standard users.

That’s not the case for iOS developers.

iOS developers use the iOS filesystem to store documents, images, cache files, and even database files.

The filesystem allows us to store a large set of information, work with resources and even share data with other app components. Most interview questions focus on organizing our files and responding to different use cases. Understanding how the sandbox is built is crucial for us as developers.

So, let’s review a question about our sandbox structure.

“Can you explain the purpose of each of the following folders in an iOS app: Documents, Library, Cache, and Temp? How would you decide which folder to use for storing different types of files in your app?”

Why is this question...