Master Union Types and Type Aliases in TypeScript to write cleaner, reusable, and maintainable code. This tutorial demonstrates how to define custom types using the ‘type’ keyword, combine multiple types with union operators (string | number), and construct reusable object shapes.
Key Topics Covered:
00:00 – Review: Adding Strings to Union Types
00:28 – Testing Union Type Inputs & Outputs
00:52 – Introduction to Type Aliases (Define Once, Use Anywhere)
01:06 – Setting up 06-type-aliases.ts in VS Code
01:20 – Defining a Custom ‘Course’ Type Alias (ID, Title, Price)
01:44 – Applying Type Aliases to Object Constants
02:08 – Executing Code with npx tsx
02:32 – Accessing & Logging Object Properties
Resources & Source Code:
💻 Official GitHub Repositories: https://github.com/Haile1221/Typescript-Tutorial
📘 Official TypeScript Type Alias Docs: https://www.typescriptlang.org/docs/handbook/2/everyday-types.html#type-aliases
🌐 Official Web Platform: https://h-digitalbusiness.com/
💬 Telegram Community: https://t.me/beshilocodingacademy
🔴 Channel Page: https://www.youtube.com/@beshilocodingacademy
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