iOS Swift Developer Assessment Test - Hire The Best iOS Swift Developers For Your Organization

What is iOS Swift?

Swift is a versatile, multi-paradigm, compiled programming language created by Apple Inc., first launched in 2014. iOS Swift is a robust and intuitive programming language for macOS, iOS, watchOS and tvOS. It is a fast, easy to use and expressive language that is quite popular with new coders and developers.

Swift instantly codes faster across the boards once it is released and debugged. It supports Linux and all Apple platforms, which enhances the efficacy of the software. Swift includes memory management software, Automatic Reference Counting (ARC) that manages memory automatically, and is easily operated. 

Features of Swift

  • Swift is open-source, which means that it is not just restricted to Apple platforms, but it can also be utilized on Linux and Android platforms.
  • Swift uses type interference and another external parameter to enable programmers to write self-documenting statements without any difficulty.
  • Since its release in 2014, it has become a programming language of choice for many leading organizations such as Apple, IBM, Lyft, Zillow, and more.
  • Swift was developed by taking cues from various languages such as Python, C#, and Ruby to become more advanced, interactive, and faster than ever.

About iOS Online Programming Skills Test

The iOS Swift programming test enables the recruiters and hiring managers to assess the programming skills before an interview accurately.  The iOS coding test is uniquely designed to evaluate the knowledge and practical skills of an iOS Swift developer as per industry standards. 

The iOS programming skills test will gauge the depth and breadth of a person's iOS Swift expertise and assess his/her employability. The assessment comprises carefully curated questions that assess a candidate's practical knowledge, and the outcome from these tests speaks volumes about the candidates' competency. 

The iOS Swift test helps employers to screen the candidates who exhibit traits as follows:

  • Well-versed in Swift and possess a good familiarity with its ecosystems
  • A proper understanding of multithreading and memory management
  • Proficiency in using RESTful APIs to integrate with back-end services
  • Possess decent UI design skills
  • Knowledge of implementing Cocoa APIs on OS X

How to hire the best iOS Swift developers?

iOS Swift developers should be well versed with the basics of iOS Swift and object-oriented programming concepts along with knowledge of Swift general-purpose packages. An online iOS developer test can help you hire the best iOS app developer by assessing concepts like access control, classes and structures, control flow, and more, along with knowledge of application-based questions. 
The iOS coding test helps you measure the basic concepts and applications of iOS Swift and enables you to evaluate a candidate’s programming skills. This is a 60-minutes iOS technical test aimed at thoroughly evaluating the knowledge, concepts, practical and implementation skills of a candidate. The test-taker needs to focus on eighteen iOS Swift multiple choice questions and answers, along with a practical iOS test intended to evaluate problem-solving and coding skills.

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Looking for a customised test?

Are you looking for a customised version of this test. Or looking to get a new test build according to your requirements from scratch? Reach out to our subject matter experts and discuss the same.

Why should you use Mercer | Mettl's online iOS programming skills test?

Mercer | Mettl's iOS Swift developer technical test is specially designed to cater to the level of skills that a beginner to an intermediate level iOS developer would be expected to possess. With the ever-evolving functionalities of iOS Swift and its ability to get the most out of modern hardware, iOS Swift developers are always in demand. 

Mettl’s iOS Swift online assessment test streamlines your hiring process and helps you screen the right candidates efficiently. Mettl can also benchmark the test for specific job roles with a vast array of a global target audience that has already given the test. Mettl can also help you customize Swift coding questions and test reports to include specific queries and analyses based on individual requirements.  

Mercer | Mettl's comprehensive reporting helps you examine candidates' section-wise performance to gauge their area of strengths and areas of improvement. You can easily share these immediately obtained results with your colleagues — features such as webcam proctoring and Mettl secure browsers help prevent cheating during the test. 

The iOS Swift assessment test includes a blend of MCQs (Multiple Choice Questions) and coding simulations to ensure that only those candidates who are competent and skilled may be selected to proceed in the next stage of the selection process.

Test Details

Number of Sections 2
Number of Questions 19
Test Duration 60 Minutes
Test Language English

Section Details

Number of MCQ/MCA items based on iOS Swift 18
Number of hands-on Swift coding questions intended to test problem-solving and development skills 1

This iOS developer technical test will help you in:

  • Measuring the basics of Swift Programming
  • Measuring Object-Oriented Programming concepts
  • Measuring hands-on development skills

Key profiles the iOS developer online test is useful for:

  • iOS Swift Developer
  • Junior Swift Developer
  • Software Developer 1 (Swift)
  • Swift Developer

Looking for a customized iOS assessment?

Are you looking for a customized version of this test? Or looking to get new iOS programming skills test build according to your requirements from scratch? Reach out to our subject matter experts, and we would be glad to help.

Answer to common queries:

Can we benchmark candidates based on our internal sample set?

We can do so selectively. Please write to us for such a request, and we would be glad to assist.
Can we customize the report to include some specific analysis?

We have done so in the past on a client-to-client basis. Please write to us for such a request, and we would be glad to work out a solution for you.
What should an iOS developer know?

An iOS developer should be well-versed in some useful programming concepts that are imperatively necessary for iOS development as given below:

  • Cocoa Touch
  • Xcode
  • View Controllers
  • Table Views
  • Auto Layout
  • Storyboards
  • Key-Value Coding

What are the skills required for an iOS developer?

Given below are some essential skills that a person must have to become a successful iOS developer:

  • The Swift 3.0 programming language
  • A strong understanding of design
  • Spatial reasoning
  • Apple’s Xcode IDE
  • Awareness of  Apple Human Interface Guidelines
  • UI/UX design factors
  • Core data
  • Grand central dispatch
  • Networking

Is iOS development a good career option in 2020?

iOS app development is one of the most sought-after skills nowadays. More people are opting to build a career in this area, as the number of smartphone users worldwide is increasing rapidly. 

The rising popularity of the iOS platform and its compatible products has paved the way for tech enthusiasts to opt for iOS application development as a career option. Many seasoned, as well as freshers, are expressing interest in the iOS app development field. Moreover, there are opportunities galore in this domain, and there is ample scope for monetary and personal growth.

Is it hard to become an iOS developer?

The learning process may seem overwhelming at the outset, but like any other discipline you want to master, the fundamental point remains the same: practice coding every day. However, there are some useful points as listed below that will come in handy:
Learn the basics of programming (Object-Oriented Programming, Data Structures)before learning to code.

  • Gain mastery at iOS / Cocoa
  • Join a community 

Are the iOS developers in demand?

Yes, take a look at the app store, you'll see millions of applications on the store, and many more are uploaded every day. All these apps need to be developed by an iOS app developer. Many fortune 500 companies use mobile applications for themselves without caring to have it on the app store. 

However, they ensure to keep the app up and running on their enterprise devices. Even though iOS development is a small niche within the software development industry, considering the great demand for Android developers and full-stack developers, it's no surprise that mobile development is one of the most in-demand and most challenging to fill tech jobs.

Is it right to learn Swift?

Swift is easier to learn and apply than objective-C; the reason for that is its closeness to other languages. Swift is faster than Objective-C and is extensively used in creating apps for AppStore.  

Is Swift worth learning in 2020?

Steve Jobs refrained from using Java, which is why Apple continues to use Objective-C code within its OS. But this is not an easy language, and the increasing popularity of iPhones and iPads in the past few years has skyrocketed the demand for iOS apps. This event induced Apple developers in 2014 to release Swift language as a viable alternative to Objective-C.  Swift is an essential programming language in iOS app development and is still gaining steady ground in other domains.

What is Swift code programming?

Swift is an intuitive, fast and general-purpose programming language created by Apple for developing apps for iOS, Mac, Apple Watch and Apple TV. It is an open-source language and easy to use for purposes ranging from system programming and mobile and desktop apps to cloud services. The language provides ease of development and convenience to the developers.

Which programming language is used in iOS?

Swift and Objective-C are two programming languages used in iOS app development. While Swift is an advanced, concise, fast, expressive and evolving programming language, Objective-C is a much older programming language.

Is Swift programming easy?

Swift isn't very hard compared to some languages. Swift has an easily understandable syntax that makes coders work efficiently.  

Is Swift written in C++?

The Swift compiler is essentially written in C++, and its standard library is written using Swift. 

Why did Apple create Swift?

Apple created Swift so that Objective-C users can get acquainted with the new language because it would be a mess to keep both languages in the same environment. Swift allows developers to perform development on iOS and OSX with the utmost ease. A Javascript developer would find Swift to be more user-friendly than Objective-C.

What apps are written in Swift?

Listed below are some apps that are built using Swift:

  • Facebook
  • Slack
  • Uber
  • Khan Academy
  • Accenture
  • LinkedIn
  • WhatsApp
  • Lyft
  • Instagram
  • CNN

Why is Swift so fast?

Swift was designed to keep in mind the operating speed, so there have been significant improvements in removing C language limitations and including new technological advancements. Objective-C is slower than Swift; the reason for that is it includes C API legacy. 

Is Swift good for machine learning?

Swift in machine learning is still at its nascent phase because there is a lack of machine learning libraries for Swift. However, Swift comes integrated with Python interoperability. Just by importing any Python library in Swift, it works perfectly fine! 

Is Swift suitable for beginners?

Swift is well-suited for beginners for the following reasons:

  • It is user-friendly and easy to start with such features as clean syntax, strong typing, argument labels, etc. 
  • Swift Playground offers a conducive environment to help beginners understand its fundamentals - it is significantly better than many toy languages
  • Unlike Scratch, Swift is essentially used in real projects
  • Swift enables beginners to develop iOS apps and websites( via Kitura, Vapor framework, Zewo or Perfect) without any difficulty. Swift helps them to learn real programming on real projects
  • It also includes a resource-rich  library, downloadable from the iBooks store

What are the most commonly asked iOS interview questions?

We have compiled a list of the most frequently asked iOS interview questions as given below:

  • What differentiates Cocoa from Cocoa Touch?
  • How do you achieve concurrency in iOS?
  • Which JSON framework is compatible with iOS?
  • What is the difference between ‘app ID’ from ‘bundle ID’? Explain why they are used?
  • What are the different types of iOS Application States?
  • Which is the framework that is used to construct the application’s user interface for iOS?
  • Explain the difference between SpriteKit and SceneKit?
  • What are iBeacons?
  • What is the difference between Swift and Objective-C?
  • What is the autorelease pool in Swift?
  • Define layer objects?
  • What is the difference between ‘assign’ and ‘retain’ keywords?
  • Define the class hierarchy for a UIButton until NSObject? 

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Relevant for Industries

  • IT
  • ITeS

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