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TypeScript Like I'm Five

Welcome to "TypeScript Like I'm Five" - a comprehensive guide to learning TypeScript from the ground up. This course is designed to take you from a JavaScript developer to a TypeScript expert through clear, practical examples and real-world applications.

Course Structure​

Getting Started​

  • Getting Started - Set up your development environment and write your first TypeScript code

Core Concepts​

  1. Basic Types - Numbers, strings, booleans, and basic type annotations
  2. Arrays and Objects - Working with collections and complex types
  3. Functions - Function types, parameters, and return types
  4. Interfaces and Types - Defining custom types and interfaces
  5. Generics - Writing flexible, reusable code
  6. Utility Types - Built-in type transformations
  7. Type Assertions & Guards - Working with type safety
  8. Classes - Object-oriented programming in TypeScript
  9. Advanced Types - Union types, intersection types, and mapped types
  10. Async TypeScript - Handling asynchronous operations
  11. Decorators - Using and creating decorators

Advanced Topics​

  1. Modules & Namespaces - Organizing your code
  2. Configuration & Tooling - Setting up your development environment
  3. Type Declaration Files - Working with .d.ts files
  4. Best Practices & Patterns - Writing better TypeScript code

Real-World Application​

  1. Project Examples - Complete project implementations
  2. Migrating from JavaScript - Converting existing projects to TypeScript

How to Use This Course​

  1. Sequential Learning: Start with the Getting Started guide and progress through the sections in order.
  2. Hands-on Practice: Each section includes practical examples you can try yourself.
  3. Project-Based Learning: Use the Project Examples section to see how concepts come together in real applications.
  4. Reference: Use the Best Practices & Patterns section as a guide for writing better TypeScript code.

Prerequisites​

  • Basic understanding of JavaScript
  • Familiarity with ES6+ features
  • Node.js installed on your system
  • A code editor (VS Code recommended)

Getting Help​

If you get stuck:

  1. Check the relevant section's examples
  2. Try the provided code samples
  3. Review the Best Practices section
  4. Consult the official TypeScript documentation

Contributing​

Found an issue or want to improve the course? Contributions are welcome! Please check our contribution guidelines in the repository.