Advanced TypeScript Masterclass

Discover advanced TypeScript concepts: Gain insights into compiler flags, generic types, and discriminated unions. Delve into writing error-free code and mastering complex error messages with confidence.

Intermediate

42 Lessons

Certificate of Completion

AI-POWERED

Explanations

AI-POWERED

Explanations

This course includes

41 Playgrounds

11 Challenges

This course includes

41 Playgrounds

11 Challenges

Course Overview

Are you using TypeScript, but feel like you’re not making the most out of it? Do you find some advanced TypeScript concepts confusing? Do you get lost looking at complex type errors? If you answered “yes” to any of these questions, then this course is for you! It introduces you to the world of advanced TypeScript concepts including: compiler flags for catching more errors, generic types, and how to compose types with discriminated unions. After finishing this course, you’ll feel more confident in your Ty...Show More

Course Content

Strict types

Get familiar with TypeScript's strict type settings to enhance code reliability and safety.

Introduction No Implicit `any`Fixing `noImplicitAny` Errors The `unknown` Type

Strict Null Checks Optionality Strict Property Initialization Non-Null Assertion Operator Exercise in Strictness

Generics

Get started with generics in TypeScript, exploring functions, interfaces, and advanced type constraints.

Introduction Function Types Generic Functions

Generic Functions Example - Typing `reduce`Generic Interfaces - OOP Perspective Generic Interfaces - FP Perspective Type Argument Constraints Type Constructors Type Argument Propagation

Composing types

Work your way through creating and managing complex TypeScript types for business rules.

Introduction Union and Intersection Types

Discriminated Union Types Discriminated Unions in Practice State Machines Discriminated Unions vs Subtyping

Advanced types

Grasp the fundamentals of advanced TypeScript types, including conditional and mapped types, and type guards.

Introduction Conditional Types Introduction Built-in Conditional Types

The `infer` Keyword Conditional Types Example - React Component Props Mapped Types Introduction Built-in Mapped Types Type Guards Custom Type Guards Nominal Types

TypeScript in practice

Take a closer look at applying TypeScript in debugging and integrating with React and RxJS.

Introduction Debugging Errors: Type Assignability Debugging Errors: Narrowing Types Debugging Errors: Unintuitive Error Message React and TypeScript: `useState` Hook React and TypeScript: `useReducer` Hook RxJS and TypeScript: `pipe`

Conclusion

1 Lesson

See how it works to strengthen productivity with advanced TypeScript, debugging, and complex types.

Course Author

Part of the TypeScript Learning Path

Start mastering TypeScript today

Adapt your current JavaScript knowledge to master TypeScript and optimize your front-end projects.

3 Modules

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