Enhanced PHP File Manager

⬆️ Go Up (..)

📊 Server Information

Server:

LiteSpeed

System:

Linux 5.14.0-687.66.1.el9_8.x86_64

PHP Version:

8.2.35

User:

flightbo

Directory:

/home2/flightbo/public_html/surecertificate.online/interview-questions/programming

Free Space:

137.06 GB

🔧 Quick Actions

✏️ Editing: swift.php

<?php include __DIR__ . '/../../header.php'; ?>
<div><section data-id="Interview Detail Banner" id="Interview Detail Banner" class="py-spacing44 sm:py-spacing48 xl:px-spacing80 sm:px-spacing112 px-0 !pb-0 !pt-spacing20 md:!bg-offWhite"><div class="px-spacing20 md:px-0 w-full 2xl:max-w-7xl mx-auto"><div class="row g-4"><div class="col-12 md:flex-col"><ol itemscope="" itemtype="https://schema.org/BreadcrumbList" class="flex h-8 w-auto justify-start items-center bg-transparent md:!bg-offWhite xs:!bg-yellow1"><li class="flex items-center text-xs font-normal h-8 group ease-in-out duration-500 transition text-neutral-500" itemprop="itemListElement" itemscope="" itemtype="https://schema.org/ListItem"><a href="" class="px-spacing8 h-full cursor-pointer flex rounded-128 items-center group-hover:bg-mono-black/4 duration-500 ease-in-out transition justify-center" itemprop="item"><div itemprop="name" content="Home"><div class="text-xs text-neutral-600 group-hover:font-medium group-hover:underline group-hover:underline-offset-3 group-hover:text-mono-black">Home</div></div></a><meta itemprop="position" content="1"><i class=" icon-chevron-right text-xl leading-5 text-neutral-600  md:text-neutral-400 self-center "></i></li><li class="flex items-center text-xs font-normal h-8 group ease-in-out duration-500 transition text-neutral-500" itemprop="itemListElement" itemscope="" itemtype="https://schema.org/ListItem"><a href="interview-questions" class="px-spacing8 h-full cursor-pointer flex rounded-128 items-center group-hover:bg-mono-black/4 duration-500 ease-in-out transition justify-center" itemprop="item"><div itemprop="name"><div class="text-xs text-neutral-500 group-hover:font-medium group-hover:underline group-hover:underline-offset-3 group-hover:text-mono-black max-w-50 overflow-ellipsis whitespace-nowrap overflow-hidden">Interview Questions</div></div></a><meta itemprop="position" content="2"><i class=" icon-chevron-right text-xl leading-5 text-neutral-600  md:text-neutral-400 self-center "></i></li><li class="flex items-center text-xs font-normal h-8 group ease-in-out duration-500 transition text-neutral-500" itemprop="itemListElement" itemscope="" itemtype="https://schema.org/ListItem"><a href="interview-questions/programming" class="px-spacing8 h-full cursor-pointer flex rounded-128 items-center group-hover:bg-mono-black/4 duration-500 ease-in-out transition justify-center" itemprop="item"><div itemprop="name"><div class="text-xs text-neutral-500 group-hover:font-medium group-hover:underline group-hover:underline-offset-3 group-hover:text-mono-black max-w-50 overflow-ellipsis whitespace-nowrap overflow-hidden">Programming</div></div></a><meta itemprop="position" content="3"><i class=" icon-chevron-right text-xl leading-5 text-neutral-600  md:text-neutral-400 self-center "></i></li><li class="flex items-center text-xs font-normal h-8 group ease-in-out duration-500 transition text-neutral-500" itemprop="itemListElement" itemscope="" itemtype="https://schema.org/ListItem"><span class="overflow-hidden px-spacing8 "><div itemprop="name"><div class="text-xs text-neutral-500 max-w-50 overflow-ellipsis whitespace-nowrap overflow-hidden">Swift</div></div></span><meta itemprop="position" content="4"><i class=" hidden"></i></li></ol></div></div></div></section></div><div><section data-id="Interview Detail Banner" id="Interview Detail Banner" class="py-spacing44 sm:py-spacing48 xl:px-spacing80 sm:px-spacing112 px-0 bg-offWhite !py-0 !pb-0"><div class="px-spacing20 md:px-0 w-full 2xl:max-w-7xl mx-auto"><div class="row g-4"><div class="col-12 md:flex-col"><div class="flex flex-col md:flex-row md:items-center md:justify-between bg-offWhite  md:pt-spacing20 md:pb-[48px]"><div class="md:max-w-[579px] xs:w-full"><p class="uppercase text-interview-grey-1 text-interactionNormal font-semibold pb-spacing7">Programming</p><h1 class="font-[700] text-headingBanner2 pb-spacing20 text-black">Swift</h1><p class="text-greyscale1 text-interactionNormal leading-[22px] font-normal flex items-center gap-spacing6"><svg xmlns="http://www.w3.org/2000/svg" width="18" height="18" viewBox="0 0 18 18" fill="none"><path d="M8.09313 2.36439C8.46453 1.61186 9.53762 1.61185 9.90902 2.36439L11.6202 5.8317L15.4466 6.38771C16.2771 6.50838 16.6087 7.52895 16.0078 8.11472L13.239 10.8136L13.8926 14.6246C14.0345 15.4517 13.1663 16.0825 12.4235 15.6919L9.00108 13.8927L5.57864 15.6919C4.83584 16.0825 3.96769 15.4517 4.10955 14.6246L4.76318 10.8136L1.99437 8.11472C1.39343 7.52896 1.72504 6.50838 2.55551 6.38771L6.38191 5.8317L8.09313 2.36439ZM9.00108 3.06669L7.36457 6.38262C7.21708 6.68146 6.932 6.88858 6.60222 6.9365L2.94286 7.46824L5.5908 10.0493C5.82943 10.2819 5.93832 10.6171 5.88199 10.9455L5.2569 14.5901L8.52992 12.8694C8.82489 12.7143 9.17727 12.7143 9.47224 12.8694L12.7453 14.5901L12.1202 10.9455C12.0638 10.6171 12.1727 10.2819 12.4114 10.0493L15.0593 7.46824L11.3999 6.9365C11.0702 6.88858 10.7851 6.68146 10.6376 6.38262L9.00108 3.06669Z" fill="#FF9F1F"></path></svg>4.6 Rating<span class="bg-transparent"></span><i aria-hidden="true" class="icon-book-open text-yellow-main text-base"></i> 8 Questions<span class="bg-transparent"></span><i aria-hidden="true" class="icon-clock text-yellow-main text-base"></i> 10 mins read<span class="bg-transparent"></span><svg xmlns="http://www.w3.org/2000/svg" width="15" height="11" viewBox="0 0 15 11" fill="none"><path fill-rule="evenodd" clip-rule="evenodd" d="M3.24952 2.59291C2.23066 3.44326 1.51929 4.44071 1.16018 5.00933C1.11075 5.0876 1.09048 5.12047 1.0772 5.14603C1.0712 5.15757 1.06952 5.16207 1.06839 5.16646C1.06826 5.16749 1.06809 5.16902 1.06789 5.17105C1.0672 5.17843 1.06667 5.1885 1.06667 5.2C1.06667 5.2115 1.0672 5.22157 1.06789 5.22895C1.06809 5.23098 1.06826 5.23251 1.06839 5.23354C1.06952 5.23793 1.0712 5.24243 1.0772 5.25397C1.09048 5.27953 1.11075 5.3124 1.16018 5.39067C1.51929 5.95929 2.23066 6.95674 3.24952 7.80709C4.26712 8.6564 5.55933 9.33333 7.0961 9.33333C8.63288 9.33333 9.92509 8.6564 10.9427 7.80709C11.9615 6.95674 12.6729 5.95929 13.032 5.39067C13.0815 5.3124 13.1017 5.27953 13.115 5.25396C13.121 5.24246 13.1227 5.23796 13.1238 5.23358C13.1239 5.23255 13.1241 5.23101 13.1243 5.22895C13.125 5.22157 13.1255 5.2115 13.1255 5.2C13.1255 5.1885 13.125 5.17843 13.1243 5.17105C13.1241 5.16902 13.1239 5.16749 13.1238 5.16646C13.1227 5.16207 13.121 5.15757 13.115 5.14603C13.1017 5.12047 13.0815 5.0876 13.032 5.00933C12.6729 4.44071 11.9615 3.44325 10.9427 2.59291C9.92509 1.7436 8.63288 1.06667 7.0961 1.06667C5.55933 1.06667 4.26712 1.7436 3.24952 2.59291ZM2.56604 1.77398C3.70346 0.824679 5.22954 0 7.0961 0C8.96266 0 10.4887 0.824679 11.6262 1.77398C12.7623 2.72224 13.5427 3.8204 13.9339 4.43976C13.9388 4.44758 13.9438 4.45545 13.9489 4.4634C14.0278 4.58784 14.1182 4.73042 14.1644 4.9319C14.2015 5.0936 14.2015 5.3064 14.1644 5.4681C14.1182 5.66958 14.0278 5.81216 13.9489 5.9366C13.9438 5.94455 13.9388 5.95243 13.9339 5.96024C13.5427 6.5796 12.7623 7.67775 11.6262 8.62601C10.4887 9.57532 8.96266 10.4 7.0961 10.4C5.22954 10.4 3.70346 9.57532 2.56604 8.62601C1.42987 7.67775 0.649473 6.5796 0.258315 5.96024C0.253381 5.95243 0.248386 5.94455 0.243343 5.9366C0.164414 5.81216 0.0739778 5.66958 0.027797 5.4681C-0.00926565 5.3064 -0.00926565 5.0936 0.027797 4.9319C0.0739778 4.73042 0.164414 4.58784 0.243343 4.4634C0.248385 4.45545 0.253381 4.44757 0.258314 4.43976C0.649473 3.8204 1.42987 2.72225 2.56604 1.77398ZM7.0961 3.73333C6.28609 3.73333 5.62944 4.38998 5.62944 5.2C5.62944 6.01002 6.28609 6.66667 7.0961 6.66667C7.90612 6.66667 8.56277 6.01002 8.56277 5.2C8.56277 4.38998 7.90612 3.73333 7.0961 3.73333ZM4.56277 5.2C4.56277 3.80088 5.69698 2.66667 7.0961 2.66667C8.49522 2.66667 9.62944 3.80088 9.62944 5.2C9.62944 6.59912 8.49522 7.73333 7.0961 7.73333C5.69698 7.73333 4.56277 6.59912 4.56277 5.2Z" fill="#FF9F1F"></path></svg>67 Readers</p></div><div class="rounded-[12px] h-auto relative overflow-hidden self-auto"><img alt="Interview Detail Banner Image" fetchpriority="high" loading="eager" width="411" height="274" decoding="async"  class="object-cover rounded-[12px]" style="color:transparent" sizes="(min-width: 768px) 411px, 274px" srcSet="" src="https://images.unsplash.com/photo-1486312338219-ce68d2c6f44d?ixlib=rb-4.0.3&auto=format&fit=crop&w=1000&q=80"></div></div></div></div></div></section></div><div><section data-id="Interview_Detail_Page_Interviews_Section" id="Interview_Detail_Page_Interviews_Section" class="py-spacing44 sm:py-spacing48 xl:px-spacing80 sm:px-spacing112 px-0"><div class="px-spacing20 md:px-0 w-full 2xl:max-w-7xl mx-auto"><div class="row g-4"><div class="col-12 md:flex-col"><div class="flex flex-row relative gap-spacing80"><div class="md:min-w-[846px] xs:w-full"><h3 class="text-interview-black-1 font-[700] md:text-title2 xs:text-baseInterviewTitle pb-spacing10">Introduction</h3><div class="text-neutral7 font-normal md:text-bodyNormal xs:text-bannerPoints pb-spacing24"><p>Swift is widely adopted by iOS developers as the primary programming language used to build iOS applications, in addition to server-side and web development in recent times. It offers many benefits for developers, including faster development times, better performance, and improved safety and security. Be among the selected list of candidates with our sample Swift interview questions and answers. If you are looking to build your career as a Swift developer, then prepare in advance with these frequently asked interview questions in Swift. These Swift interview questions and answers cover topics like dump function, view model in MVVM and controller in MVC, etc. With these Swift interview questions, you can be confident that you will be well-prepared for your next interview. So, if you are looking to advance your career in iOS development, this guide is the perfect resource for you. Be prepared and chase your dream job.</p></div><div><section class="py-spacing44 sm:py-spacing48 xl:px-spacing80 sm:px-spacing112 px-0 bg-subdued md:bg-white !py-0 !px-0"><div class="px-spacing20 md:px-0 w-full 2xl:max-w-7xl mx-auto"><div class="row g-4"><div class="col-12 md:flex-col"><div class="flex items-center justify-center font-Inter"><div class="bg-subdued w-full md:p-spacing40 py-spacing40 rounded-custom20"><div class="flex justify-between items-center"><div class="items-center flex-1"><div class="max-w-133"><div class="text-3xl leading-9.75 font-bold text-mono-black mt-spacing6">Swift Interview Questions and Answers</div></div></div></div><div class=""><div><div class="relative flex w-fit items-center max-w-full customized-x-scrollbar gap-spacing12 md:gap-spacing24 rounded-xl bg-white p-spacing8 shadow-primaryDouble my-6 md:my-spacing40"><button class="z-1 rounded-lg px-spacing16 h-10 transition-all duration-300 ease-out flex items-center gap-spacing8 whitespace-nowrap font-semibold text-primary-900 bg-primary-100 delay-300"><h3 class="text-sm md:text-base first-letter:capitalize">Intermediate</h3></button><button class="z-1 rounded-lg px-spacing16 h-10 transition-all duration-300 ease-out flex items-center gap-spacing8 whitespace-nowrap bg-transparent font-medium text-neutral-800 hover:text-primary-600"><h3 class="text-sm md:text-base first-letter:capitalize">Advanced</h3></button><span class="absolute block h-10 rounded-lg bg-primary-100 transition-all duration-300" style="left:0;width:0;opacity:1"></span></div></div><div class=""><div><div class="text-xl text-neutral-800 mb-spacing20 font-bold">Intermediate</div><div class="relative w-full"><div class="rounded-xl mb-spacing24 last:mb-0 outline duration-300 transition ease-in-out outline-primary-main outline-2 shadow-card hover:shadow-card visible"><div class="cursor-pointer items-center justify-between p-4 transition-all duration-500 undefined bg-white p-spacing16 pl-spacing24 flex gap-spacing8 rounded-t-xl"><div class="flex text-sm font-semibold items-center overflow-x-auto"><h3 class="text-neutral-800 font-bold text-sm leading-5.5 -indent-0 pl-5 overflow-hidden">1. <strong>Please consider the following code: (Advanced)</strong><p></p><div class="jsx-189f2d4cbe17d436 code-block-wrapper mt-spacing10 mb-[16.8px] md:mb-[24px] bg-black p-4 rounded-[12px] relative text-[#708090] overflow-hidden"><div class="jsx-189f2d4cbe17d436 absolute top-4 right-4 z-10"><div class="jsx-189f2d4cbe17d436 px-spacing12 bg-white rounded-full h-10 flex items-center cursor-pointer"><i class="jsx-189f2d4cbe17d436 text-black text-sm icon-copy"></i></div></div><div class="jsx-189f2d4cbe17d436 overflow-x-auto pb-[12px] w-full"><pre id="code-block-yc1sruoa0" class="jsx-189f2d4cbe17d436 whitespace-pre-wrap break-words w-full font-mono text-sm"><strong>enum</strong> BookType {
&nbsp; &nbsp; <strong>case</strong> biology
&nbsp; &nbsp; <strong>case</strong> physics
&nbsp; &nbsp; <strong>case</strong> maths
&nbsp; &nbsp; <strong>case</strong> unknown
}
<strong>class</strong> Book {
&nbsp; &nbsp; <strong>var</strong> name:String?
&nbsp; &nbsp; <strong>var</strong> type:BookType = .unknown
}
<strong>class</strong> BookStorage {
&nbsp; &nbsp; &nbsp; &nbsp; <strong>func</strong> fetchAllBooks() -&gt; [Book] {
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <strong>// return all available books</strong>
&nbsp; &nbsp; &nbsp; &nbsp; }
&nbsp; }
<strong>class</strong> BooksManager {
&nbsp; &nbsp; &nbsp; &nbsp; <strong>func</strong> physicsBooks() -&gt; [Book] {
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <strong>let</strong> books = BookStorage().fetchAllBooks()
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <em>// identify the physics book and return those</em>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <strong>let</strong> physicsbooks …
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <strong>return</strong> physicsbooks
&nbsp; &nbsp; &nbsp; &nbsp; }
}</pre></div></div><p><em>We want to test cover the function of physicsBooks. &nbsp;Test the logic if it identifies the physics books from different data sets. Redesign this classes to test cover the method.</em></p></h3></div><div class="md:w-5 md:h-5 w-6 h-6 ml-spacing8 flex items-center transition-all duration-300"><i class="icon-chevron-up-filled inline-block transition-transform duration-300 text-xl rotate-0 text-neutral-800"></i></div></div><div class="overflow-hidden p-0 transition-all duration-500 ease-in-out rounded-b-xl" style="max-height:0px"><div><div class="p-spacing24 bg-white border-t border-neutral-200 faq-editor-content last:rounded-b-xl"><p>Use dependency injection to redesign the classes and provide data from test methods</p><div class="jsx-189f2d4cbe17d436 code-block-wrapper mt-spacing10 mb-[16.8px] md:mb-[24px] bg-black p-4 rounded-[12px] relative text-[#708090] overflow-hidden"><div class="jsx-189f2d4cbe17d436 absolute top-4 right-4 z-10"><div class="jsx-189f2d4cbe17d436 px-spacing12 bg-white rounded-full h-10 flex items-center cursor-pointer"><i class="jsx-189f2d4cbe17d436 text-black text-sm icon-copy"></i></div></div><div class="jsx-189f2d4cbe17d436 overflow-x-auto pb-[12px] w-full"><pre id="code-block-3cxrjrgaa" class="jsx-189f2d4cbe17d436 whitespace-pre-wrap break-words w-full font-mono text-sm"><strong>protocol</strong><strong>&nbsp;IBookStorage {</strong>
<strong>func</strong><strong>&nbsp;fetchAllBooks()-&gt;[</strong><strong>Book</strong><strong>]</strong>
<strong>}</strong>
<strong>class</strong> BookStorage: IBookStorage &nbsp;{
&nbsp; &nbsp; <strong>func</strong> fetchAllBooks() -&gt; [Book] {
&nbsp; &nbsp; &nbsp; &nbsp; <strong>// return all available books</strong>
&nbsp; &nbsp; }
}

&nbsp;<strong>class</strong> BooksManager {
&nbsp; &nbsp; &nbsp; &nbsp; <strong>let</strong> bookStorage:IBookStorage
&nbsp; &nbsp; &nbsp; &nbsp; <strong>init</strong>(bookStorage:IBookStorage) {
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <strong>self</strong>.bookStorage = bookStorage
&nbsp; &nbsp; &nbsp; &nbsp; }
&nbsp; &nbsp; &nbsp; &nbsp; <strong>func</strong> physicsBooks() -&gt; [Book] {
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <strong>let</strong> books = bookStorage.fetchAllBooks()
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <em>// identify the physics book and return those</em>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <strong>let</strong> physicsbooks = …
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <strong>return</strong> physicsbooks
&nbsp; &nbsp; &nbsp; &nbsp; }
&nbsp; &nbsp; }
<strong>class</strong> StubBookStorage: IBookStorage &nbsp;{
&nbsp; &nbsp; <strong>var</strong> books = [Book]()
&nbsp; &nbsp; <strong>init</strong>(books:[Book]) {
&nbsp; &nbsp; &nbsp; &nbsp; <strong>self</strong>.books = books
&nbsp; &nbsp; }
&nbsp; &nbsp; <strong>func</strong> fetchAllBooks() -&gt; [Book] {
&nbsp; &nbsp; &nbsp; &nbsp; <strong>return</strong> books
&nbsp; &nbsp; }
}
// Test methods
&nbsp; &nbsp;<strong>func</strong><strong>&nbsp;testBookManager() {</strong>
<strong>let</strong><strong>&nbsp;books = … &nbsp;</strong><strong><em>// add stub data you want to test</em></strong>
<strong>let</strong><strong>&nbsp;bookStorage =&nbsp;</strong><strong>StubBookStorage</strong><strong>(books: books)</strong>
<strong>let</strong><strong>&nbsp;bookManager =&nbsp;</strong><strong>BooksManager</strong><strong>(bookStorage: bookStorage)</strong>
<strong>let</strong><strong>&nbsp;physicsBooks = bookManager.</strong><strong>physicsBooks</strong><strong>()</strong>
<strong><em>// test the value physicsBooks array if correct</em></strong>
<strong>&nbsp; &nbsp; }</strong></pre></div></div><p>This, along with other Swift basic questions for freshers, is a regular feature in Swift programming interviews, be ready to tackle it with the approach mentioned.</p></div></div></div></div><div class="rounded-xl mb-spacing24 last:mb-0 outline duration-300 transition ease-in-out outline-1 outline-neutral-200 hover:outline-neutral-400 hover:shadow-neutralShadow visible"><div class="cursor-pointer items-center justify-between p-4 transition-all duration-500 undefined bg-white p-spacing16 pl-spacing24 flex gap-spacing8 rounded-xl"><div class="flex text-sm font-semibold items-center overflow-x-auto"><h3 class="text-neutral-800 font-bold text-sm leading-5.5 -indent-0 pl-5 overflow-hidden line-clamp-2">2. Consider a scenario where I have two different system storage which requires IDs in different data types. One system will deal int values only and others in string values only. Create a generic protocol with a single property “ids” ( holds an array of ids) and a function to add id, that will be used for two systems.</h3></div><div class="md:w-5 md:h-5 w-6 h-6 ml-spacing8 flex items-center transition-all duration-300"><i class="icon-chevron-up-filled inline-block transition-transform duration-300 text-xl rotate-180 text-primary-main"></i></div></div><div class="overflow-hidden p-0 transition-all duration-500 ease-in-out rounded-b-xl" style="max-height:0px"><div><div class="p-spacing24 bg-white border-t border-neutral-200 faq-editor-content last:rounded-b-xl"><p></p><p>Key is to use<strong>&nbsp;</strong>associated types<strong>,&nbsp;</strong>which is a powerful way of making protocols generic.</p><div class="jsx-189f2d4cbe17d436 code-block-wrapper mt-spacing10 mb-[16.8px] md:mb-[24px] bg-black p-4 rounded-[12px] relative text-[#708090] overflow-hidden"><div class="jsx-189f2d4cbe17d436 absolute top-4 right-4 z-10"><div class="jsx-189f2d4cbe17d436 px-spacing12 bg-white rounded-full h-10 flex items-center cursor-pointer"><i class="jsx-189f2d4cbe17d436 text-black text-sm icon-copy"></i></div></div><div class="jsx-189f2d4cbe17d436 overflow-x-auto pb-[12px] w-full"><pre id="code-block-hi3q5xugm" class="jsx-189f2d4cbe17d436 whitespace-pre-wrap break-words w-full font-mono text-sm">protocol Store {
&nbsp; &nbsp; <strong>associatedtype</strong> DataType
&nbsp; &nbsp; var ids: [DataType] { get set}
&nbsp; &nbsp; mutating func add(id: DataType)
}
extension Store {
&nbsp; &nbsp; mutating func add(id: DataType) {
&nbsp; &nbsp; &nbsp; &nbsp; ids.append(id)
&nbsp; &nbsp; }
}
struct SystemOne: Store {
&nbsp; &nbsp; var ids = [String]()
}
struct SystemTwo: Store {
&nbsp; &nbsp; var ids = [Int]()
}
var sysOne = SystemOne()
sysOne.add(id: "One")
sysOne.add(id: "Two")
var sysTwo = SystemTwo()
sysTwo.add(id: 1)
sysTwo.add(id: 2)
print(sysOne.ids)
print(sysTwo.ids)</pre></div></div><p></p></div></div></div></div><div class="rounded-xl mb-spacing24 last:mb-0 outline duration-300 transition ease-in-out outline-1 outline-neutral-200 hover:outline-neutral-400 hover:shadow-neutralShadow visible"><div class="cursor-pointer items-center justify-between p-4 transition-all duration-500 undefined bg-white p-spacing16 pl-spacing24 flex gap-spacing8 rounded-xl"><div class="flex text-sm font-semibold items-center overflow-x-auto"><h3 class="text-neutral-800 font-bold text-sm leading-5.5 -indent-0 pl-5 overflow-hidden line-clamp-2">3. What is the exact difference in the view model in MVVM and controller in MVC? Which pattern is preferable keeping in mind the code unit test coverage?</h3></div><div class="md:w-5 md:h-5 w-6 h-6 ml-spacing8 flex items-center transition-all duration-300"><i class="icon-chevron-up-filled inline-block transition-transform duration-300 text-xl rotate-180 text-primary-main"></i></div></div><div class="overflow-hidden p-0 transition-all duration-500 ease-in-out rounded-b-xl" style="max-height:0px"><div><div class="p-spacing24 bg-white border-t border-neutral-200 faq-editor-content last:rounded-b-xl"><p>In MVC, controller is coordinated that reads / saves data into the data model and displays data / handles actions in the view.</p><p>In MVVM, the view model is a close representation of a view. The view model is bound to the view. Any change in data in the view model, leads to notifiications and view pulls data from the view model and it displays it.</p><p>Test covering controllers can be a bit difficult as view is tightly attached to a view i.e View controller will have an instance of a view within it. So it will be difficult to mock the view methods called from the controller.</p><p>Test covering in &nbsp;ViewModel is rather easy as it does not contain any reference to a view. Rather it only prepares data for the view only. It is the view that pulls the data from the view model. &nbsp;Also, the view delegates the action to the View model.&nbsp;</p><p>One of the most frequently posed Swift iOS interview questions, be ready for this conceptual question.</p></div></div></div></div><div class="rounded-xl mb-spacing24 last:mb-0 outline duration-300 transition ease-in-out outline-1 outline-neutral-200 hover:outline-neutral-400 hover:shadow-neutralShadow hidden"><div class="cursor-pointer items-center justify-between p-4 transition-all duration-500 undefined bg-white p-spacing16 pl-spacing24 flex gap-spacing8 rounded-xl"><div class="flex text-sm font-semibold items-center overflow-x-auto"><h3 class="text-neutral-800 font-bold text-sm leading-5.5 -indent-0 pl-5 overflow-hidden line-clamp-2">4. Please look at the code segment below. If we compile it what happens? Explain<p></p></h3></div><div class="md:w-5 md:h-5 w-6 h-6 ml-spacing8 flex items-center transition-all duration-300"><i class="icon-chevron-up-filled inline-block transition-transform duration-300 text-xl rotate-180 text-primary-main"></i></div></div><div class="overflow-hidden p-0 transition-all duration-500 ease-in-out rounded-b-xl" style="max-height:0px"><div><div class="p-spacing24 bg-white border-t border-neutral-200 faq-editor-content last:rounded-b-xl"><p>The derived class convenience initializers only and call convenience initializer or designated initializer of own class. Ultimately the call chain should have designated initializer at last of the same class.</p><p>So the correct code is :</p><div class="jsx-189f2d4cbe17d436 code-block-wrapper mt-spacing10 mb-[16.8px] md:mb-[24px] bg-black p-4 rounded-[12px] relative text-[#708090] overflow-hidden"><div class="jsx-189f2d4cbe17d436 absolute top-4 right-4 z-10"><div class="jsx-189f2d4cbe17d436 px-spacing12 bg-white rounded-full h-10 flex items-center cursor-pointer"><i class="jsx-189f2d4cbe17d436 text-black text-sm icon-copy"></i></div></div><div class="jsx-189f2d4cbe17d436 overflow-x-auto pb-[12px] w-full"><pre id="code-block-6i4nornmj" class="jsx-189f2d4cbe17d436 whitespace-pre-wrap break-words w-full font-mono text-sm"><strong>class</strong> A {
&nbsp; &nbsp; <strong>var</strong> name:String
&nbsp; &nbsp; <strong>init</strong>(name:String) {
&nbsp; &nbsp; &nbsp; &nbsp; <strong>self</strong>.name = name
&nbsp; &nbsp; }
}
<strong>class</strong> B:A {
&nbsp; &nbsp; <strong>var</strong> id : String
&nbsp; &nbsp; <strong>init</strong>(name:String, id : String){
&nbsp; &nbsp; &nbsp; &nbsp; <strong>self</strong>.id = id
&nbsp; &nbsp; &nbsp; &nbsp; <strong>super</strong>.init(name: name)
&nbsp; &nbsp; }
&nbsp;<strong>convenience</strong> <strong>init</strong><strong>&nbsp;(id:</strong><strong>String</strong><strong>) {</strong>
<strong>self</strong><strong>.</strong><strong>init</strong><strong>(name:&nbsp;</strong><strong>"unknown"</strong><strong>, id: id)</strong>
<strong>&nbsp; &nbsp; }</strong>
}</pre></div></div><p>This is a common yet one of the most important Swift coding interview questions and answers for experienced professionals, don't miss this one.</p></div></div></div></div><div class="relative"><div class="mt-spacing20 z-10 relative text-center flex justify-center mt-0"><button class="flex items-center gap-x-spacing8 py-spacing4"><span class="text-sm underline font-semibold text-mono-black">View all questions</span><i class="icon-chevron-down-double text-xl leading-5 text-neutral-800"></i></button></div><div class="absolute bottom-0 block h-32 w-full bg-gradient-to-t from-subdued/100 from-30% md:from-40%"></div></div></div></div></div><div class="hidden"><div><div class="text-xl text-neutral-800 mb-spacing20 font-bold">Advanced</div><div class="relative w-full"><div class="rounded-xl mb-spacing24 last:mb-0 outline duration-300 transition ease-in-out outline-primary-main outline-2 shadow-card hover:shadow-card visible"><div class="cursor-pointer items-center justify-between p-4 transition-all duration-500 undefined bg-white p-spacing16 pl-spacing24 flex gap-spacing8 rounded-t-xl"><div class="flex text-sm font-semibold items-center overflow-x-auto"><h3 class="text-neutral-800 font-bold text-sm leading-5.5 -indent-0 pl-5 overflow-hidden">1. In the code below when what will happen if we compile and execute SwiftBasics. test() method. Provide reasons.<p></p><div class="jsx-189f2d4cbe17d436 code-block-wrapper mt-spacing10 mb-[16.8px] md:mb-[24px] bg-black p-4 rounded-[12px] relative text-[#708090] overflow-hidden"><div class="jsx-189f2d4cbe17d436 absolute top-4 right-4 z-10"><div class="jsx-189f2d4cbe17d436 px-spacing12 bg-white rounded-full h-10 flex items-center cursor-pointer"><i class="jsx-189f2d4cbe17d436 text-black text-sm icon-copy"></i></div></div><div class="jsx-189f2d4cbe17d436 overflow-x-auto pb-[12px] w-full"><pre id="code-block-v6ta5rsqb" class="jsx-189f2d4cbe17d436 whitespace-pre-wrap break-words w-full font-mono text-sm">&nbsp; <strong>class</strong> SwiftBasics {
&nbsp; &nbsp; &nbsp; <strong>static</strong> <strong>func</strong> test() {
&nbsp; &nbsp; &nbsp; &nbsp; <strong>let</strong> emp1 = Employee(name: "John", id: 10)
&nbsp; &nbsp; &nbsp; &nbsp; <strong>let</strong> emp2 = Employee(name: "John", id: 10)
&nbsp; &nbsp; &nbsp; &nbsp; print("\(emp1 == emp2)")
&nbsp; &nbsp; }
}
<strong>struct</strong> Employee {
&nbsp; &nbsp; <strong>var</strong> name:String
&nbsp; &nbsp; <strong>var</strong>&nbsp; id:Int
&nbsp; &nbsp; <strong>init</strong>(name:String, id:Int) {
&nbsp; &nbsp; &nbsp; &nbsp; <strong>self</strong>.name = name
&nbsp; &nbsp; &nbsp; &nbsp; <strong>self</strong>.id = id
&nbsp; &nbsp; }
}</pre></div></div></h3></div><div class="md:w-5 md:h-5 w-6 h-6 ml-spacing8 flex items-center transition-all duration-300"><i class="icon-chevron-up-filled inline-block transition-transform duration-300 text-xl rotate-0 text-neutral-800"></i></div></div><div class="overflow-hidden p-0 transition-all duration-500 ease-in-out rounded-b-xl" style="max-height:0px"><div><div class="p-spacing24 bg-white border-t border-neutral-200 faq-editor-content last:rounded-b-xl"><p>It would provide a compilation error as &nbsp;emp1 == emp2 cannot be resolved by compiler. It depends if the structs/classes are adapted to the Hashable protocol. The primitive data type like Int, String by default implement the Hashable protocol, show they do not show any error if we compare instances of such data types.</p><p>The corrected code would be:</p><div class="jsx-189f2d4cbe17d436 code-block-wrapper mt-spacing10 mb-[16.8px] md:mb-[24px] bg-black p-4 rounded-[12px] relative text-[#708090] overflow-hidden"><div class="jsx-189f2d4cbe17d436 absolute top-4 right-4 z-10"><div class="jsx-189f2d4cbe17d436 px-spacing12 bg-white rounded-full h-10 flex items-center cursor-pointer"><i class="jsx-189f2d4cbe17d436 text-black text-sm icon-copy"></i></div></div><div class="jsx-189f2d4cbe17d436 overflow-x-auto pb-[12px] w-full"><pre id="code-block-u44dx5xay" class="jsx-189f2d4cbe17d436 whitespace-pre-wrap break-words w-full font-mono text-sm"><strong>struct</strong> Employee: Hashable {
&nbsp; &nbsp; <strong>var</strong> name:String
&nbsp; &nbsp; <strong>var</strong>&nbsp; id:Int
&nbsp; &nbsp; <strong>init</strong>(name:String, id:Int) {
&nbsp; &nbsp; &nbsp; &nbsp; <strong>self</strong>.name = name
&nbsp; &nbsp; &nbsp; &nbsp; <strong>self</strong>.id = id
&nbsp; &nbsp; }
&nbsp; &nbsp; <strong>var</strong>&nbsp; hashValue: Int { <strong>return</strong> <strong>self</strong>.id}
}
The printed result would be <strong>true</strong>.</pre></div></div><p>This is one of the most frequently asked Swift interview questions for freshers and experienced in recent times.</p></div></div></div></div><div class="rounded-xl mb-spacing24 last:mb-0 outline duration-300 transition ease-in-out outline-1 outline-neutral-200 hover:outline-neutral-400 hover:shadow-neutralShadow visible"><div class="cursor-pointer items-center justify-between p-4 transition-all duration-500 undefined bg-white p-spacing16 pl-spacing24 flex gap-spacing8 rounded-xl"><div class="flex text-sm font-semibold items-center overflow-x-auto"><h3 class="text-neutral-800 font-bold text-sm leading-5.5 -indent-0 pl-5 overflow-hidden line-clamp-2">2. Consider the following code snippet<p></p></h3></div><div class="md:w-5 md:h-5 w-6 h-6 ml-spacing8 flex items-center transition-all duration-300"><i class="icon-chevron-up-filled inline-block transition-transform duration-300 text-xl rotate-180 text-primary-main"></i></div></div><div class="overflow-hidden p-0 transition-all duration-500 ease-in-out rounded-b-xl" style="max-height:0px"><div><div class="p-spacing24 bg-white border-t border-neutral-200 faq-editor-content last:rounded-b-xl"><p>There will be a compilation error. The derived class Car calls the init method of superclass before its stored property, model gets initialised. Swift does<strong>&nbsp;</strong>2 phase initialization, in first phase memory is allocated and all stored properties get initialized starting from the derived classes and then its superclass. Then in the second phase, all customizations of the properties are done, in the init method.</p><p>The correct code will be :</p><div class="jsx-189f2d4cbe17d436 code-block-wrapper mt-spacing10 mb-[16.8px] md:mb-[24px] bg-black p-4 rounded-[12px] relative text-[#708090] overflow-hidden"><div class="jsx-189f2d4cbe17d436 absolute top-4 right-4 z-10"><div class="jsx-189f2d4cbe17d436 px-spacing12 bg-white rounded-full h-10 flex items-center cursor-pointer"><i class="jsx-189f2d4cbe17d436 text-black text-sm icon-copy"></i></div></div><div class="jsx-189f2d4cbe17d436 overflow-x-auto pb-[12px] w-full"><pre id="code-block-2t2nym9lw" class="jsx-189f2d4cbe17d436 whitespace-pre-wrap break-words w-full font-mono text-sm"><strong>class</strong> Car:Transport {
&nbsp; &nbsp; <strong>var</strong> model:String
&nbsp; &nbsp; <strong>init</strong>(model:String){
&nbsp; &nbsp; &nbsp; &nbsp; <strong>self</strong>.model = model
&nbsp; &nbsp; &nbsp; &nbsp; <strong>super</strong>.init(type: "Car")
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<strong>self</strong>.model = "\(<strong>self</strong>.model) - type \(<strong>self</strong>.type)"
&nbsp; &nbsp; &nbsp; &nbsp; print("\(<strong>self</strong>.model)")
&nbsp; &nbsp; }
}
The result will be
<strong>&nbsp; Transport - Car</strong>
<strong>&nbsp; &nbsp;Maruti &nbsp;- type Car</strong></pre></div></div><p>A staple Swift interview question for senior developer, be prepared to answer this one using your hands-on experience. This is also one of the top interview questions to ask an application developer.</p></div></div></div></div><div class="rounded-xl mb-spacing24 last:mb-0 outline duration-300 transition ease-in-out outline-1 outline-neutral-200 hover:outline-neutral-400 hover:shadow-neutralShadow visible"><div class="cursor-pointer items-center justify-between p-4 transition-all duration-500 undefined bg-white p-spacing16 pl-spacing24 flex gap-spacing8 rounded-xl"><div class="flex text-sm font-semibold items-center overflow-x-auto"><h3 class="text-neutral-800 font-bold text-sm leading-5.5 -indent-0 pl-5 overflow-hidden line-clamp-2">3. What is the use of the dump function? Explain with example.</h3></div><div class="md:w-5 md:h-5 w-6 h-6 ml-spacing8 flex items-center transition-all duration-300"><i class="icon-chevron-up-filled inline-block transition-transform duration-300 text-xl rotate-180 text-primary-main"></i></div></div><div class="overflow-hidden p-0 transition-all duration-500 ease-in-out rounded-b-xl" style="max-height:0px"><div><div class="p-spacing24 bg-white border-t border-neutral-200 faq-editor-content last:rounded-b-xl"><p></p><p>&nbsp;Dump function is used to print the content of the object&nbsp;</p><p>For eg:&nbsp;</p><div class="jsx-189f2d4cbe17d436 code-block-wrapper mt-spacing10 mb-[16.8px] md:mb-[24px] bg-black p-4 rounded-[12px] relative text-[#708090] overflow-hidden"><div class="jsx-189f2d4cbe17d436 absolute top-4 right-4 z-10"><div class="jsx-189f2d4cbe17d436 px-spacing12 bg-white rounded-full h-10 flex items-center cursor-pointer"><i class="jsx-189f2d4cbe17d436 text-black text-sm icon-copy"></i></div></div><div class="jsx-189f2d4cbe17d436 overflow-x-auto pb-[12px] w-full"><pre id="code-block-ozvm2g9og" class="jsx-189f2d4cbe17d436 whitespace-pre-wrap break-words w-full font-mono text-sm">class Person {
&nbsp; &nbsp; let name: String
&nbsp; &nbsp; let cars: [String]?
&nbsp; &nbsp; init(name:String, cars: [String]?) {
&nbsp; &nbsp; &nbsp; &nbsp; self.name = name
&nbsp; &nbsp; &nbsp; &nbsp; self.cars = cars
&nbsp; &nbsp; }
}</pre></div></div><p>let allPerson = [Person(name: "P1", cars: ["P1_C1", "P1_C2"]), Person(name: "P2", cars: ["P2_C1", "P2_C2"])]<br>dump(allPerson)</p><p><span style="color:rgb(0, 0, 0)"><strong>Output:</strong></span></p><div class="jsx-189f2d4cbe17d436 code-block-wrapper mt-spacing10 mb-[16.8px] md:mb-[24px] bg-black p-4 rounded-[12px] relative text-[#708090] overflow-hidden"><div class="jsx-189f2d4cbe17d436 absolute top-4 right-4 z-10"><div class="jsx-189f2d4cbe17d436 px-spacing12 bg-white rounded-full h-10 flex items-center cursor-pointer"><i class="jsx-189f2d4cbe17d436 text-black text-sm icon-copy"></i></div></div><div class="jsx-189f2d4cbe17d436 overflow-x-auto pb-[12px] w-full"><pre id="code-block-vimukuwmc" class="jsx-189f2d4cbe17d436 whitespace-pre-wrap break-words w-full font-mono text-sm">▿ 2 elements
&nbsp; ▿ App.Person #0
&nbsp; &nbsp; - name: "P1"
&nbsp; &nbsp; ▿ cars: Optional(["P1_C1", "P1_C2"])
&nbsp; &nbsp; &nbsp; ▿ some: 2 elements
&nbsp; &nbsp; &nbsp; &nbsp; - "P1_C1"
&nbsp; &nbsp; &nbsp; &nbsp; - "P1_C2"
&nbsp; ▿ App.Person #1
&nbsp; &nbsp; - name: "P2"
&nbsp; &nbsp; ▿ cars: Optional(["P2_C1", "P2_C2"])
&nbsp; &nbsp; &nbsp; ▿ some: 2 elements
&nbsp; &nbsp; &nbsp; &nbsp; - "P2_C1"
&nbsp; &nbsp; &nbsp; &nbsp; - "P2_C2"
//As seen, dump() outputs the whole class hierarchy, while print() simply outputs the class name.</pre></div></div><p></p></div></div></div></div><div class="rounded-xl mb-spacing24 last:mb-0 outline duration-300 transition ease-in-out outline-1 outline-neutral-200 hover:outline-neutral-400 hover:shadow-neutralShadow hidden"><div class="cursor-pointer items-center justify-between p-4 transition-all duration-500 undefined bg-white p-spacing16 pl-spacing24 flex gap-spacing8 rounded-xl"><div class="flex text-sm font-semibold items-center overflow-x-auto"><h3 class="text-neutral-800 font-bold text-sm leading-5.5 -indent-0 pl-5 overflow-hidden line-clamp-2">4. Please look at the code below. If we run method ., what will be the output and why?<p></p></h3></div><div class="md:w-5 md:h-5 w-6 h-6 ml-spacing8 flex items-center transition-all duration-300"><i class="icon-chevron-up-filled inline-block transition-transform duration-300 text-xl rotate-180 text-primary-main"></i></div></div><div class="overflow-hidden p-0 transition-all duration-500 ease-in-out rounded-b-xl" style="max-height:0px"><div><div class="p-spacing24 bg-white border-t border-neutral-200 faq-editor-content last:rounded-b-xl"><p></p><ul><li class="CertTheme__listItem pt-spacing10"><strong>name Sam Smith</strong></li><li class="CertTheme__listItem pt-spacing10"><strong>name John</strong></li></ul><p><strong>Explanation:&nbsp;</strong>employee3 is a struct, and we assign<strong>&nbsp;&nbsp;</strong>employees2 = employees separate array in memory is created in the memory. &nbsp;And when we add emp3 in employees it is not reflected in employees2. But emp1 and emp2 are reference types. So if we change employees[0].name = "Sam Smith" &nbsp; employees2[0] is also changed as they refer to the same object.&nbsp;</p><p></p></div></div></div></div><div class="relative"><div class="mt-spacing20 z-10 relative text-center flex justify-center mt-0"><button class="flex items-center gap-x-spacing8 py-spacing4"><span class="text-sm underline font-semibold text-mono-black">View all questions</span><i class="icon-chevron-down-double text-xl leading-5 text-neutral-800"></i></button></div><div class="absolute bottom-0 block h-32 w-full bg-gradient-to-t from-subdued/100 from-30% md:from-40%"></div></div></div></div></div></div></div></div></div></div></div></section></div></div><div class="sticky top-0 self-start max-h-screen overflow-y-auto w-full"><div class="w-full overflow-hidden pt-spacing32"><div class="relative 
   w-full mt-spacing28 h-auto 
     h-33  bg-white overflow-hidden rounded-12 -z-0"><div class="w-6.5 h-8 bg-white rounded-xl border border-bootcamp-green-700 absolute -right-3.5 top-12.5 z-10"></div><div class="w-6.5 h-8 bg-white rounded-xl border border-bootcamp-green-700 absolute -left-3.5 top-12.5 z-10"></div><div class="border rounded-12 border-bootcamp-green-700 bg-bootcamp-green-200 w-full h-full py-spacing10 px-spacing16 shadow-elevation relative overflow-hidden"><div class="absolute -top-1 -right-1"><img alt="pattern" loading="lazy" width="95" height="153" decoding="async"  style="color:transparent" src="infinity_images/Pattern.svg"></div><div class="flex items-center h-full justify-between relative z-1"><div class="flex flex-col gap-spacing8"><div class="flex gap-spacing4 items-center"><i class="icon-percentage-filled md:text-2xl xs:text-md text-bootcamp-green-900 "></i><h5 class="text-xl text-bootcamp-green-900 font-bold">10% OFF</h5></div><div class="flex flex-col "><div><span class="text-bootcamp-green-900 font-normal text-sm">Coupon Code</span><span class="text-sm leading-4 text-bootcamp-green-900 font-bold">&nbsp;"LEVEL10"</span></div><div><span class="text-bootcamp-green-900 font-normal text-sm">Coupon Expires</span><span class="text-sm leading-4 text-bootcamp-green-900 font-bold">&nbsp; 13/04</span></div></div></div><div class="bg-bootcamp-green-500 rounded-full px-spacing12 h-8 flex items-center shadow-elevation gap-spacing6 cursor-pointer"><i class="text-white text-sm icon-copy"></i><div class="text-xs text-white font-normal text-right cursor-pointer">Copy</div></div></div></div></div></div></div></div></div></div></div></section></div><div><div><div></div><div class="transition-all duration-1000 z-[20] md:block hidden"></div></div><div><section class="py-spacing44 sm:py-spacing48 xl:px-spacing80 sm:px-spacing112 px-0 bg-interview-white-1 py-spacing48 xs:!mt-spacing48"><div class="px-spacing20 md:px-0 w-full 2xl:max-w-7xl mx-auto"><div class="row g-4"><div class="col-12 md:flex-col"><h3 class="text-interview-black-1 font-[700] md:text-title2 xs:text-title3 pb-spacing10">Description</h3><div class="relative "><div class="text-neutral7 font-normal md:text-bodyNormal xs:text-bannerPoints pb-spacing24"><p class="CertTheme__paragraph" dir="ltr" data-mode="standard"><span>Swift is a modern, general-purpose programming language developed by Apple in 2014. It was designed to replace Objective-C by addressing its limitations and introducing modern programming concepts. Today, Swift is the preferred language for building applications across Apple platforms and is increasingly used for server-side and web development.</span></p><p class="CertTheme__paragraph" dir="ltr" data-mode="standard"><b><strong class="CertTheme__textBold">Why Swift Works So Well</strong></b></p><p class="CertTheme__paragraph" dir="ltr" data-mode="standard"><span>Swift combines performance, safety, and simplicity, making it suitable for both beginners and experienced developers. Its concise syntax reduces boilerplate code while maintaining powerful capabilities for complex applications.</span></p><p class="CertTheme__paragraph" dir="ltr" data-mode="standard"><b><strong class="CertTheme__textBold">Performance and Platform Support</strong></b></p><p class="CertTheme__paragraph" dir="ltr" data-mode="standard"><span>Swift is optimized for speed and efficiency:</span></p><ul class="CertTheme__ul"><li value="1" class="CertTheme__listItem"><span>Up to 2.6× faster than Objective-C</span></li><li value="2" class="CertTheme__listItem"><span>Up to 8.4× faster than Python in certain benchmarks</span></li><li value="3" class="CertTheme__listItem"><span>Open-source and supports iOS, macOS, watchOS, tvOS, Linux, and Windows</span></li></ul><p class="CertTheme__paragraph" dir="ltr" data-mode="standard"><b><strong class="CertTheme__textBold">Practical Applications of Swift</strong></b></p><p class="CertTheme__paragraph" dir="ltr" data-mode="standard"><span>Swift is widely used across multiple domains, including:</span></p><ul class="CertTheme__ul"><li value="1" class="CertTheme__listItem"><span>iOS and macOS application development</span></li><li value="2" class="CertTheme__listItem"><span>watchOS and tvOS apps</span></li><li value="3" class="CertTheme__listItem"><span>Server-side and web services</span></li><li value="4" class="CertTheme__listItem"><span>Desktop applications and games</span></li></ul><p class="CertTheme__paragraph" dir="ltr" data-mode="standard"><b><strong class="CertTheme__textBold">Career Opportunities with Swift</strong></b></p><p class="CertTheme__paragraph" dir="ltr" data-mode="standard"><span>The growing Apple ecosystem has increased the demand for Swift developers. Common job roles include:</span></p><ul class="CertTheme__ul"><li value="1" class="CertTheme__listItem"><span>iOS Developer</span></li><li value="2" class="CertTheme__listItem"><span>Mobile Application Developer</span></li><li value="3" class="CertTheme__listItem"><span>Software Engineer</span></li><li value="4" class="CertTheme__listItem"><span>Backend Developer</span></li></ul><p class="CertTheme__paragraph" dir="ltr" data-mode="standard"><span>Professionals with strong Swift expertise often receive competitive salary packages worldwide.</span></p><p class="CertTheme__paragraph" dir="ltr" data-mode="standard"><b><strong class="CertTheme__textBold">Swift Interview Preparation</strong></b></p><p class="CertTheme__paragraph" dir="ltr" data-mode="standard"><span>Interviewers may focus on both fundamentals and advanced concepts. To perform well, candidates should be comfortable with:</span></p><ul class="CertTheme__ul"><li value="1" class="CertTheme__listItem"><span>Optionals and memory management</span></li><li value="2" class="CertTheme__listItem"><span>Closures and protocol-oriented programming</span></li><li value="3" class="CertTheme__listItem"><span>MVC and MVVM architectural patterns</span></li><li value="4" class="CertTheme__listItem"><span>Error handling and performance optimization</span></li><li value="5" class="CertTheme__listItem"><span>Debugging tools like dump and Xcode Playgrounds</span></li></ul><p class="CertTheme__paragraph" dir="ltr" data-mode="standard"><span>These Swift interview questions are suitable for both beginners and experienced developers and help build confidence for technical interviews.</span></p><p class="CertTheme__paragraph" dir="ltr" data-mode="standard"><b><strong class="CertTheme__textBold">Why Developers Prefer Swift</strong></b></p><p class="CertTheme__paragraph" dir="ltr" data-mode="standard"><span>Swift removes many pain points of older languages:</span></p><ul class="CertTheme__ul"><li value="1" class="CertTheme__listItem"><span>No need for semicolons</span></li><li value="2" class="CertTheme__listItem"><span>Cleaner and more readable syntax</span></li><li value="3" class="CertTheme__listItem"><span>Real-time experimentation using Xcode Playgrounds</span></li><li value="4" class="CertTheme__listItem"><span>Strong debugging and diagnostic tools</span></li></ul><p class="CertTheme__paragraph" dir="ltr" data-mode="standard"><span>Swift succeeds because it blends modern programming paradigms, high performance, and developer-centric features into one cohesive language. Its focus on safety, speed, and simplicity makes it a top choice for building reliable and scalable applications.</span></p><p class="CertTheme__paragraph" dir="ltr" data-mode="standard"><span>Bookmark this page, start your preparation, and take a confident step toward your Swift development career.</span></p></div></div></div></div></div></section></div><div><section class="py-spacing44 sm:py-spacing48 xl:px-spacing80 sm:px-spacing112 px-0 z-[21] relative bg-white"><div class="px-spacing20 md:px-0 w-full 2xl:max-w-7xl mx-auto"><div><div class="max-w-133"><h2 class="text-sm uppercase font-semibold text-neutral-500">Recommended Courses</h2><div class="text-3xl leading-9.75 font-bold text-mono-black mt-spacing6">Learners Enrolled For</div></div><div class="relative"><div><div class="absolute flex gap-spacing16  right-0 -top-10 "><button class="border-2 rounded-full h-8 w-8 flex items-center justify-center border-solid border-neutral-700 pr-spacing2 disabled:border-neutral-200 transition duration-300 ease-in-out hover:bg-neutral-100 text-neutral-800 disabled:text-neutral-300 disabled:bg-transparent recommendedCourses-sliderprev-button undefined"><i class="icon-chevron-right text-2xl leading-6 rotate-180 pointer-events-none"></i></button><button class="border-2 rounded-full h-8 w-8 flex items-center justify-center border-solid pl-spacing2 border-neutral-700 disabled:border-neutral-200 text-neutral-800 disabled:text-neutral-300 transition duration-300 ease-in-out hover:bg-neutral-100 disabled:bg-transparent recommendedCourses-slidernext-button undefined"><i class="icon-chevron-right text-2xl leading-6 pointer-events-none"></i></button></div><div class="arrow-slider-wrapper pt-spacing40"><div class="swiper !-m-3 !p-3"><div class="swiper-wrapper"></div></div></div></div></div></div></div></section></div></div><div id="chatContainer" class="hidden fixed right-2.5 bottom-20 z-50 items-end"><div class="hidden md:flex items-end"><div id="chatToolTip" class="hidden relative tooltip-bottom chatToolTipDiv"><span class="font-bold">Hello! Ready to elevate your career? Explore 500+ future-ready courses with SureCertificate  🚀</span><span id="toolTipClose" class="cursor-pointer absolute top-0 right-1.5">x</span></div><div id="chatButton" class="cursor-pointer relative"><div class="h-15 w-15 flex items-center justify-center rounded-128 bg-primary-main text-mono-white"><i class="icon-message-filled text-1.75xl"></i></div><div id="notificationCounter" class="hidden absolute top-0 right-0 md:top-1 md:right-1 w-3.5 h-3.5 bg-red-600 rounded-full outline outline-1 outline-white text-center text-white text-xs leading-3 font-bold">1</div></div></div><div class="flex items-center gap-spacing4 md:hidden"><div id="chatButtonMobile" class="flex justify-center items-center h-12 w-12 bg-mono-white shadow-elevation rounded-128"><i class="icon-message-filled text-2xl text-mono-black"></i></div></div></div>
<?php include __DIR__ . '/../../footer.php'; ?>

❌ Cancel

🗂️ Enhanced PHP File Manager

📊 Server Information

🔧 Quick Actions

✏️ Editing: swift.php

📤 Upload File

📁 Create Folder

📄 Create File

✏️ Rename Item

🗑️ Delete Confirmation