JavaScript developers
You already build with vanilla JavaScript and want fewer surprises when code runs. This course is your next step to make everyday development and refactoring feel safer.
Understanding TypeScript
Get started with TypeScript and take a deep dive into all its basic, advanced and important niche features. From the ground up, step by step!
Course Overview
About This Course
You can write JavaScript that works — but you’re tired of finding out about mistakes only after you run the code. Autocomplete feels unreliable, refactors feel risky, and “it should be fine” keeps turning into debugging sessions.
In this course, you’ll add TypeScript to the way you already build with JavaScript, so you can catch problems earlier and make your code easier to change. You’ll see how TypeScript works under the hood, then apply it in realistic scenarios — with exercises (and solutions) to make the ideas stick.
By the end, you’ll be able to introduce TypeScript into your own projects with confidence: set up a workflow that fits your stack, write code that’s safer to evolve, and use TypeScript effectively whether you’re working in a React app or a Node / Express codebase.
What You'll Learn
You’ll go from understanding how the TypeScript compiler thinks to using advanced type features and integrating TypeScript into React and Node / Express workflows.
Type-safe JavaScript code
Use TypeScript’s type system to write code that prevents common runtime errors, including choosing the right built-in types and creating your own types for real project needs.
Compiler & config control
Understand how the TypeScript compiler works and configure it to match your project goals, so you can control how code is checked and how it’s prepared for execution.
Modern JS with TypeScript
Apply ES6 features like destructuring, arrow functions, and classes through TypeScript so you can use modern patterns even when the target environment doesn’t support them natively.
Advanced type techniques
Use powerful features like
infer, mapped types, constant types withas const, andsatisfiesto model complex data and APIs without losing readability or safety.Architecture with TS constructs
Build maintainable structures with classes, interfaces, namespaces, modules, generics, and derived types, choosing the right tool for reusable code and clear contracts.
TypeScript across stacks
Combine TypeScript with ReactJS and with NodeJS / Express (including native Node.js TypeScript support) so you can keep strong typing from UI components to server logic.
Ready to get started?
Prerequisites
JavaScript knowledge is required, but you don’t need to be an expert.
No prior TypeScript experience is required.
ES6 knowledge is helpful, but not required.
Who Is This Course For?
Angular learners
You’re learning Angular and keep hearing “TypeScript is required,” but the language itself feels like a black box. This course helps you understand what TypeScript is doing so Angular code makes more sense.
Stack-flexible builders
You switch between front end and back end and don’t want separate “typing strategies” for each. This course is for you if you want one TypeScript foundation that carries into React and Node / Express work.
Curriculum Overview
Start NowPreview the structure and pacing of this course before you begin.
And 13 more sections in the full course.
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Single Course
Understanding TypeScript
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- One-time payment
- All future updates for this course
- Downloadable resources & code
- Certificate of completion
- Hands-on exercises & projects
- Self-paced learning
- English captions on all videos
- Lifetime access
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Everything we teach. One subscription.
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$4,335+ worth of courses
- Full access to all courses
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- Downloadable resources & code
- Certificates of completion
- Hands-on exercises & projects
- Self-paced learning
- English captions on all videos
- Cancel anytime