TypeScript Programming

1

Introduction to TypeScript

Learn what TypeScript is, why it matters, how to install it, and compile your first program.

beginner

2

Basic Types

Understand TypeScript's primitive types: string, number, boolean, any, void, null, and undefined.

beginner

3

Arrays and Tuples

Work with typed arrays and fixed-length tuples in TypeScript.

beginner

4

Enums

Define named constants with TypeScript enums including numeric, string, and const enums.

beginner

5

Functions with Types

Write type-safe functions with typed parameters, return types, optional and default parameters, and overloads.

beginner

6

Interfaces

Define object shapes with interfaces, implement them in classes, and extend them for composition.

intermediate

7

Type Aliases and Union Types

Create custom type names with type aliases and combine types using unions and intersections.

intermediate

8

Type Guards and Narrowing

Learn how TypeScript narrows types using typeof, instanceof, in, and custom type guard functions.

intermediate

9

Classes

Build typed classes with access modifiers, abstract classes, and typed properties in TypeScript.

intermediate

10

Generics

Write reusable, type-safe code with generic functions, classes, and constraints.

intermediate

11

Utility Types

Use TypeScript's built-in utility types like Partial, Required, Pick, Omit, and Record for type transformations.

intermediate

12

Modules and Namespaces

Organize TypeScript code with ES modules, imports, exports, and namespaces.

intermediate

13

Declaration Files

Write and use .d.ts declaration files to add type information to untyped JavaScript libraries.

advanced

14

Decorators

Use TypeScript decorators to add metadata and modify classes, methods, and properties at design time.

advanced

15

Advanced Types

Master mapped types, conditional types, template literal types, and infer for powerful type-level programming.

advanced

16

Error Handling with Types

Implement type-safe error handling using discriminated unions, Result types, and custom error hierarchies.

advanced

17

TypeScript with React

Use TypeScript effectively with React to type components, props, hooks, events, and context.

advanced

18

Building a Typed API Client

Build a complete, type-safe API client using generics, utility types, and TypeScript best practices.

advanced