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Advanced TypeScript Masterclass

Name: Advanced TypeScript Masterclass
Price: 59 USD
Author: Milosz Piechocki

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.

4.5

42 lessons

Created by Milosz Piechocki

What's included

42 lessons across 6 modules
AI Tutor on every lesson

Join 3.1 million developers at

What You'll Learn

Configure strict compiler flags (strict, strictNullChecks, noImplicitAny) in tsconfig
Resolve noImplicitAny errors using explicit annotations, any, and visible aliasing
Apply unknown with correct assignability and narrowing to safely handle uncertain data
Use strict null checks, optionality, and non-null assertions to prevent null/undefined bugs
Design generic functions and interfaces with constraints, constructors, and type propagation
Compose union/intersection types and discriminated unions to model business rules and state machines
Debug complex type errors by analyzing assignability, narrowing limits, overloads, and generics

Learning Roadmap

42 Lessons11 Challenges

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

6 Lessons

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

Advanced types

10 Lessons

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

TypeScript in practice

7 Lessons

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

Conclusion

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

Conclusion

Certificate of Completion

Showcase your accomplishment by sharing your certificate of completion.

About this course

WHY I WROTE THIS COURSE

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 TypeScript skills. You will be able to write types that detect whole classes of possible runtime errors at compile time. Typing even the most untypeable JavaScript code will be a no brainer for you, and you’ll be fluent in TypeScript error messages.

ABOUT THE AUTHOR

Milosz Piechocki

Experienced software engineer with a passion for TypeScript. Working at SumoLogic.

Learn more about Milosz

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