Home>Courses>Advanced TypeScript Masterclass

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

Course Overview

Course Content

Recommendations

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

9 Lessons

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

9 Lessons

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

6 Lessons

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

10 Lessons

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

7 Lessons

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 Lessons

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

Conclusion

Course Author

Milosz Piechocki

Trusted by 2.5 million developers working at companies

"These are high-quality courses. Trust me. I own around 10 and the price is worth it for the content quality. EducativeInc came at the right time in my career. I'm understanding topics better than with any book or online video tutorial I've done. Truly made for developers. Thanks"

Anthony Walker

@_webarchitect_

"Just finished my first full #ML course: Machine learning for Software Engineers from Educative, Inc. ... Highly recommend!"

Evan Dunbar

ML Engineer

"You guys are the gold standard of crash-courses... Narrow enough that it doesn't need years of study or a full blown book to get the gist, but broad enough that an afternoon of Googling doesn't cut it."

Carlos Matias La Borde

Software Developer

"I spend my days and nights on Educative. It is indispensable. It is such a unique and reader-friendly site"

Souvik Kundu

Front-end Developer

"Your courses are simply awesome, the depth they go into and the breadth of coverage is so good that I don't have to refer to 10 different websites looking for interview topics and content."

Vinay Krishnaiah

Software Developer

"I've tried probably 5-7 different sites and Educative is easily the best. It perfectly blends explanation with interactivity"

Eric Downs

Musician/Entrepeneur

Hands-on Learning Powered by AI

See how Educative uses AI to make your learning more immersive than ever before.

Instant Code Feedback

Evaluate and debug your code with the click of a button. Get real-time feedback on test cases, including time and space complexity of your solutions.

AI-Powered Mock Interviews

Put your skills to the test in a simulated interview setting. Receive personalized feedback based on your performance. Available in Premium & Premium Plus plans.

Adaptive Learning

At various checkpoints throughout Educative courses, you will be prompted to take a quick assessment. Receive a condensed curriculum tailored to your strengths and skill gaps.

Explain with AI

Select any text within any Educative course, and get an instant explanation — without ever leaving your browser.

AI Code Mentor

AI Code Mentor helps you quickly identify errors in your code, learn from your mistakes, and nudge you in the right direction — just like a 1:1 tutor!

Recommended before starting this course

Course

Building Full-Stack Web Applications with AdonisJs

Gain insights into AdonisJs fundamentals. Delve into routes, controllers, middleware, and hooks. Discover practical examples, illustrations, and quizzes to confidently build your full-stack applications.

intermediate

Course

Web Development: Unraveling HTML, CSS, and JavaScript

Explore HTML, CSS, and JavaScript fundamentals. Gain insights into forms, controls, OOP in JavaScript, and key CSS patterns. Create responsive, stylized, and performant web applications.

beginner

20 hours

Course

React Tracked: Creating Web Apps with Global State

Discover how React Tracked optimizes render performance in web apps. Build a to-do app using two methods, and gain skills to create advanced applications efficiently.

beginner

3 hours

Course

Building Full-Stack Web Applications with AdonisJs

intermediate

Course

Web Development: Unraveling HTML, CSS, and JavaScript

beginner

20 hour

Course

React Tracked: Creating Web Apps with Global State

beginner

3 hour

Related Courses and Skill Paths

Course

Intermediate JavaScript: Building Frontend Components

Gain insights into building real-world components using JavaScript. Delve into dropdown menus, auto-validating forms, autocomplete search, infinite scroll, and tooltips to tackle common frontend challenges seamlessly.

intermediate

10 hours

Course

Using TypeScript with React

Gain insights into integrating TypeScript with React to improve productivity. Learn about strongly-typed props, state, and events, and set up projects using Create React App, Webpack, and Babel.

intermediate

9 hours

Course

Web Development Interview Handbook

The ultimate guide to web development interviews. Developed by FAANG engineers, practice with real-world interview questions covering network security, system design, SEO, APIs, and more.

intermediate

6 hours 30 mins

Course

The JavaScript Interview Handbook: 100+ Interview Questions

The ultimate guide to JavaScript interviews. Developed by FAANG engineers, practice with real-world interview questions, gain confidence, and get interview-ready in just a few hours.

intermediate

10 hours

Course

Intermediate JavaScript: Building Frontend Components

intermediate

10 hour

Course

Using TypeScript with React

intermediate

9 hour

Course

Web Development Interview Handbook