The #1 TypeScript book for JavaScript developers out today
Learning TypeScript will take you from knowing nothing about "types" or a "type system" to full mastery of the fundamentals of TypeScript.
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Projects
Hands on real world projects that will help you exercise your knowledge of TypeScript.
The Typeinator
🥗 Appetizer Project
System of a Clown
🥗 Appetizer Project
Primitive Cooking
🥗 Appetizer Project
The Narrow Trail
🍲 Entree Project
Various Lawyerings
🥗 Appetizer Project
The Typer
🍲 Entree Project
Articles
Top tips and tricks for why TypeScript behaves the way it does, and how you can work effectively with it.
Branded Types
How the concept of branded types allows describing primitives more precisely than TypeScript normally allows.
Why TypeScript Doesn't Include a `throws` Keyword
Why a `throws` keyword has not been added to TypeScript, despite some other languages having an equivalent.
Narrowing Function Parameters With Rests And Tuples
Using rest parameters and tuples to apply union type narrowing to a function's parameters
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Learning TypeScript
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Go from knowing nothing about “types” or "type systems" to full mastery of TypeScript fundamentals – whether you're a beginner or advanced JavaScript programmer.
About the author
Josh Goldberg
Hi, I'm Josh! I'm a full time independent open source developer with a passion for static analysis, and the web. I'm a full time open source maintainer and work on projects in the TypeScript ecosystem such as typescript-eslint and TypeStat. I'm passionate about bringing accessible education to the masses in a sustainable way.Visit my Site ↗