Practical TypeScript

Syllabus

1. TypeScript Fundamentals

   We'll start with understanding what TypeScript is and why it's valuable, covering basic syntax, type annotations, and the development workflow with TypeScript tooling.

2. Basic Types and Type System

   Deep dive into TypeScript's type system including primitives, objects, arrays, functions, and classes. We'll cover type inference and when explicit annotations are needed.

3. Unions and Type Narrowing

   Learn to combine types with unions, work with literal types and template literals, and master type narrowing techniques including type guards and discriminated unions.

4. Intersections and Interfaces

   Understand type intersections, the differences between types and interfaces, interface merging, and best practices for structuring complex type definitions.

5. Utility Types and Dynamic Keys

   Explore TypeScript's built-in utility types like Pick, Omit, Partial, and Record. Learn to work with dynamic object keys and index signatures.

6. Classes and Object-Oriented Features

   Cover TypeScript's class syntax, constructor shortcuts, access modifiers, inheritance, and TypeScript-specific features like parameter properties and enums.

7. Advanced Type Manipulation

   Master keyof, typeof, index access types, and techniques for deriving types from existing structures to build more maintainable codebases.

8. Generics and Generic Constraints

   Learn to write reusable, type-safe code with generics, including generic functions, constraints, default type parameters, and advanced patterns like mapped types.

9. Conditional Types and Advanced Patterns

   Explore conditional types, the infer keyword, branded types, and advanced TypeScript patterns used in real-world applications and popular libraries.

10. Configuration and Best Practices

    Review TypeScript configuration options, declaration files, JSDoc integration, and best practices for organizing and maintaining TypeScript projects at scale.

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