From Xcode 3 to 16, 15 years of iOS development by a Silicon Valley developer, Swift essentials only

Learning Objectives

• Understanding the overall Xcode environment (Xcode 3→16) and the iOS memory model (ARC)

• Master the core of Swift grammar (variables, constants, data types, optional)

• Strengthening the ability to utilize functional programming fundamentals (pure functions, closures, higher-order functions)

• Understand advanced functional patterns through Copy-on-Write, generics, Protocol/Extension, etc.

Expected results after taking the course

1. Write reliable Swift code : From optional safety to memory management, develop coding habits that reduce runtime errors.

2. Applying a highly reusable functional style : Using pure functions and higher-order functions, you can express complex logic concisely and greatly improve maintainability.

3. Increased Productivity : Master Xcode debugging tools and functional error handling techniques to quickly catch bugs and speed up stable app development.

Learn about these things

Swift Basic Grammar & Functional Introduction

Let's explain the contents below in detail according to the learning objectives.

• Grammar Core : Variables (let/var), data types, Optional safety handling (guard, if let)

• Pure Functions & Closures : Writing Functions Without Side Effects and Basic Closure Syntax

• Setting up a hands-on environment : Run Swift code right away with Playground

Key words – Immutability & Type Safety

Let's explain the contents below in detail according to the learning objectives.

• let vs var : Strategies for managing immutability and mutability

• Basic data types : Int, String, Bool, etc. Type inference

• Optional Handling : How to Use if let , guard let , and nil Coalescing Operators

Pure Functions & Closures

We will cover the following contents in detail according to your learning objectives.

• Pure functions : guarantee input → output without side effects

• Function Composition : Composing complex logic by combining simple functions

• Closure Grammar : Shorthand Parameters and Trailing Closure Usage

Higher order functions & optimization

Depending on your learning objectives, we will focus on the following contents.

• map · filter · reduce : Practice the most frequently used higher-order functions

• Practice Performance Optimization Methods

• Custom Higher-Order Functions : Tailored Practice for Different Situations

Who created this course

• 2024.05 ~ Present: Software Engineer, Artificial Intelligence Startup, Silicon Valley, USA

• 2023.08 ~ 2024.04: US Big Tech Engineer Fellowship Full Stack Software Engineer Fellow

• ~2022.10 @Employed at a domestic company (search portal/fintech, AI)

  
  

Things to note before taking the class