Structs on AI VOID

Chapter 5: Structs & Classes - Building Data Models

Thu, 26 Feb 2026 00:00:00 +0000

Introduction

Welcome back, future Swift maestros! In the previous chapters, we laid the groundwork with variables, constants, basic data types, and functions. Now, it’s time to level up our ability to organize and model data in a meaningful way. Imagine trying to describe a person, a car, or a recipe using just individual variables – it would quickly become a tangled mess!

This chapter introduces two of Swift’s most fundamental building blocks for creating custom data types: structs and classes. These powerful constructs allow us to bundle related properties (data) and methods (functions that operate on that data) into a single, cohesive unit. Understanding structs and classes is absolutely crucial for writing clean, efficient, and idiomatic Swift code, especially as you embark on building production-grade iOS applications.

Core Concepts: Structs, Enums, and Pattern Matching

Sat, 25 Oct 2025 00:00:00 +0000

Core Concepts: Structs, Enums, and Pattern Matching

As your programs grow, you’ll need ways to define custom data types that logically group related pieces of data. Rust provides structs and enums for this purpose. Combined with pattern matching, these features allow you to write expressive, robust, and type-safe code.

Structs

Structs are custom data types that let you name and package together multiple related values into a meaningful group. Each piece of data in a struct is called a field.

Chapter 6: Structs, Enums, and Powerful Pattern Matching

Fri, 20 Mar 2026 00:00:00 +0000

Introduction

Welcome back, Rustaceans! In our previous chapters, we laid the groundwork for understanding Rust’s core syntax, variables, and the unique concept of ownership. Now, it’s time to elevate our data modeling capabilities beyond simple scalars. Imagine trying to describe a person or a color using just individual i32s or Strings – it would quickly become cumbersome and error-prone.

This chapter introduces you to Rust’s powerful tools for creating custom data types: structs and enums. Structs allow you to group related pieces of data into a single, meaningful unit, much like objects in other languages (but without methods initially). Enums, short for enumerations, let you define a type that can be one of several possible variants, perfect for situations where a value can be either this or that.

Guided Project 1: Command-Line Todo Application

Sat, 25 Oct 2025 00:00:00 +0000

Guided Project 1: Command-Line Todo Application

In this guided project, you’ll build a functional command-line todo application. This project will reinforce many concepts you’ve learned, including:

Structs and Enums for data modeling.
Ownership and borrowing.
Error handling with Result and Option.
File I/O for persistent data storage.
Basic command-line argument parsing.

Our todo application will allow users to:

Add a new todo item.
Mark an item as completed.
List all todo items (showing completed status).

We’ll store todo items in a simple JSON file.