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Cracking the iOS Interview: Key Coding Challenges

Name: Cracking the iOS Interview: Key Coding Challenges
Rating: 4.6 (62 reviews)

Understanding the Coding Challenge Skills in a Tech Interview to be an iOS Developer

Created byNorbert Grover

Last updated 7/2024

English

English [Auto],

What you'll learn

Understand and Solve Common String Manipulation Problems
Apply Basic Higher-Order Functions in Swift
Develop Techniques for Counting and Comparing Characters
Enhance Code Quality and Efficiency
Solve Mathematical Coding Challenges in Swift
Manipulate and Analyze Strings
Implement Basic Algorithmic Functions
Understand and Apply Recursion

Course content

9 sections • 40 lectures • 5h 14m total length

Explanation of the course and the instructor.1:59
Learn practical how-to for solving iOS coding challenges by breaking problems into building blocks, analyzing time and space complexity, and benchmarking efficiency with concise guidance.
Coding challenges are just a part of the interview analysis.1:31
Master not only coding challenges but also software architecture, system design patterns, terminal proficiency, Git and GitHub workflows, code review, and CI/CD to excel in iOS interview crunch time.

Introduction to coding challenges with Xcode Swift and playgrounds.4:45
When you are new to programming, you are probably not familiar with concepts like for loops, while loops, switch case and if then statements, let alone higher order functions. This series of videos will break these concepts down and give you the conceptual building blocks with which you can use to create your coding challenge skillset.

Are all characters in a String unique?3:49
Alternative solutions9:14
What is a palindrome?10:05
Do 2 strings have the same characters?8:36
Explore how to check if two strings have the same characters, using a set and sorting. See a loop-based alternative with a guard statement to verify each character.
Finding the substring within the string?3:07
Count the number of times a character appears in a string8:15
How do you remove duplicate characters?7:40
How do you remove white spaces?6:58
Remove extra spaces from a sentence by using a string extension with components, filtering out empty items, and joining the results; alternatively, build a loop to accumulate nonempty items.
Is the string rotated?6:34
Is the string a pangram?6:52
Counting vowels and consonants in a string7:34
Is a pair of strings different by more than 3 characters?7:43
Find the longest common prefix.7:01
Find the longest common prefix across an array of strings. Start with the first element, extend the prefix, and use hasPrefix checks.
Reverse the order of characters in a string.9:33
How do you sort an array of strings by length?4:40
Return the index of an item in an array.6:48
Implement a Swift extension on collection to fetch the index of a given element by iterating with enumerated and returning the offset, or nil if not found.
How to test if 2 strings are isomorphic.10:48

Re-create a power function4:26
Create our own power function by multiplying the number by itself the required number of times in a loop, and verify with 5 to the 3rd power.
Create a function that decides whether a number is prime.9:56
Explore how to implement an isPrime function in Swift by extending Int, using modulus checks to determine prime numbers, and returning a boolean.
Decide if a string is numeric13:31
Adding string characters as though they were integers.12:24
Calculate the square root of an integer.3:44
How many times does a character appear in an array of integers?6:23
How do you find the 3 smallest integers in an array?5:47
How do you find the missing numbers in an array of integers?10:53
How do you find the median in an array of integers?12:06
Create a custom ‘min’ function.12:19
Explore building a custom min function with for loops to find the lowest value in a numeric list, without using built-in min or max helpers, handling optional values.
Get the sum of even integers.3:55

Control Structures in Swift - if then, case, loops4:55
Explore control structures in Swift by working through an integer array, using if statements and contains checks on targets, and switch cases with defaults, while printing results to the screen.
For Loops26:49
Ternary operator, 'OR' operator, AND operator7:55
Explore how the ternary operator compares to if statements, and learn to combine conditions with or and and operators to build simple control structures.

Requirements

Students should have a foundational knowledge of Swift, including basic syntax, data types, and control structures.
Learners should be comfortable using Xcode and have a basic understanding of the iOS development workflow.
Students will need access to a Mac computer with Xcode installed to practice the coding challenges and follow along with the course material.
Students should be motivated to enhance their coding interview skills and ready to practice coding challenges to prepare for job interviews in iOS development.

Description

Course Description: Cracking the iOS Interview: Key Coding Challenges

Prepare for your iOS technical interviews with Norbert Grover's expert-led course designed to master coding challenges crucial for success. This course focuses on essential coding problems and techniques that interviewers seek, providing you with the tools to demonstrate proficiency in Swift during technical interviews.

What You Will Learn:

Interview Insights: Understand what interviewers look for in coding challenges and how to showcase your coding proficiency.

String Manipulation: Tackle various string-based problems, from checking unique characters to finding the longest common prefix.

Array Handling: Learn to sort, find indices, and handle array-based challenges.

Higher-Order Functions: Master the use of higher-order functions and recursive logic in Swift.

Arithmetic Challenges: Develop functions to handle prime numbers, numeric strings, and other arithmetic operations.

Control Structures and Complexity: Dive into loops, benchmarking, and understanding time and space complexities.

Course Outline:

1. Introduction: Course overview and instructor introduction.

2. Coding Challenges Fundamentals: Using Xcode Swift and playgrounds.

3. String Challenges: Unique characters, palindromes, substrings, and more.

4. Array Challenges: Sorting, indexing, and finding missing elements.

5. Higher-Order Functions: Basics and advanced usage.

6. Recursive Logic: Solving problems with recursion.

7. Arithmetic Functions: Prime checking, numeric strings, and calculations.

8. Control Structures: Efficient use of loops and understanding complexity.

9. Benchmarking and Complexity: Time and space complexity analysis.

Who Should Enroll?

iOS Job Seekers: Ideal for developers preparing for technical interviews.

Aspiring iOS Developers: Those looking to sharpen their problem-solving skills in Swift.

Prepare effectively for your iOS technical interviews with practical, real-world coding challenges and expert guidance from Norbert Grover. Enroll now and take the next step in your iOS development career!

Who this course is for:

Individuals looking to start a career in iOS development and want to prepare for coding interviews by mastering basic coding challenges.
Computer science students and recent graduates who are preparing for their first iOS developer job interviews and need to strengthen their problem-solving skills.
Junior developers who want to enhance their coding skills and improve their chances of success in technical interviews for more advanced positions.
Self-taught programmers who have a basic understanding of Swift and iOS development and are seeking structured practice to tackle common coding interview questions.
Professionals from other fields of software development who are transitioning into iOS development and need to familiarize themselves with typical coding challenges in iOS interviews.

Cracking the iOS Interview: Key Coding Challenges

What you'll learn

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Course content

Introduction2 lectures • 4min

Introduction to coding challenges with Xcode Swift and playgrounds.1 lecture • 5min

Dealing with strings in coding challenges17 lectures • 2hr 5min

Higher order functions2 lectures • 17min

Recursive Logic1 lecture • 10min

Encoding1 lecture • 8min

Arithmetic functions11 lectures • 1hr 35min

Control Structures3 lectures • 40min

Benchmarking and function efficiency2 lectures • 11min

Requirements

Description

Who this course is for: