Learn Typescript
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Learn Typescript
This course is part of multiple programs.
Instructor: Bob Ziroll
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What you'll learn
A solid understanding of the fundamentals of TypeScript.
How to leverage TypeScript to create safer and more reliable JavaScript applications.
Skills you'll gain
Tools you'll learn
Details to know
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- Earn a shareable career certificate
There are 4 modules in this course
This course introduces you to the essential building blocks of TypeScript through a hands-on approach. You'll explore the fundamentals of TypeScript, learn to leverage TypeScript in React, and explore TypeScript in Express, plus build a TypeScript-based project.
TypeScript catches errors before your code even runs. That means fewer bugs, smoother projects, and less rage-quitting! Plus, its type system makes refactoring and collaborating a breeze. In the first module, Getting Started with TypeScript, you'll cover: - Basic, literal & custom types - Arrays, objects & optional properties - Union types Module Two, Applying Advanced TypeScript concepts, introduces you to: - Narrowing, return types, and utility types - Function calls Module Three, TypeScript in React, will acquaint you with: - Initialising a React + TypeScript project - Typing useState, props & components - Working with JSX that may return null Finally, in the TypeScript in Express module, you'll get to grips with: - Setting up a TS-powered Express server - Typed requests, responses & data - Handling CORS, 404s, IDs & query params - Automating server restarts with confidence Ready to make your code safer? Let's go!
Learn the foundational concepts of TypeScript, including type annotations, custom types, and handling complex data structures, to build safer and more maintainable code.
What's included
1 assignment17 plugins
1 assignment•Total 20 minutes
- Getting Started with TypeScript Quiz•20 minutes
17 plugins•Total 65 minutes
- Introduction•6 minutes
- Welcome to interactive lessons!•1 minute
- Intro to Pizza app•10 minutes
- Move code to TS•3 minutes
- Defensive coding•5 minutes
- Obligatory types basics lesson•4 minutes
- Add type to orderId•1 minute
- Defining Custom Types•4 minutes
- Adding a Pizza type•4 minutes
- Nested object types•5 minutes
- Optional properties•3 minutes
- Adding an Order type•1 minute
- Typing arrays•5 minutes
- Type orderQueue•4 minutes
- Literal types•3 minutes
- Union types•3 minutes
- Update order status to use literal type unions•3 minutes
Master advanced TypeScript features like utility types, generics, type narrowing, and function return types to create robust, scalable, and reusable code solutions.
What's included
1 assignment14 plugins
1 assignment•Total 20 minutes
- Applying Advanced TypeScript Concepts Quiz•20 minutes
14 plugins•Total 52 minutes
- Applying ids to pizzas•3 minutes
- Type Narrowing•5 minutes
- Be explicit whenever you can•2 minutes
- Function return types•3 minutes
- TS-specific types: any•3 minutes
- Add return type to getPizzaDetail•3 minutes
- Void return type•2 minutes
- Add automatic ids to menu items•4 minutes
- Utility Types & Partial•7 minutes
- Omit Utility Type•7 minutes
- Fix TS warnings with Omit•4 minutes
- Generic functions in the pizza restaurant•3 minutes
- Explicitly type generic function calls•4 minutes
- Conclusion... for now•2 minutes
This module covers typing props, state, functions, and components—all with hands-on examples and challenges. You’ll gain confidence using TypeScript in real React projects and write safer, more predictable code.
What's included
1 assignment20 plugins
1 assignment•Total 15 minutes
- TypeScript in React Graded Assignment•15 minutes
20 plugins•Total 50 minutes
- Welcome to TypeScript and React•2 minutes
- Setting up the React Project•3 minutes
- TS Refresher – Basic & Custom Types•3 minutes
- TS Refresher – Functions•3 minutes
- TS Refresher – A new getRandomIndex() function•2 minutes
- Typing useState()•3 minutes
- Typing Derived Values and Arrow Functions•2 minutes
- Typing App.tsx functions•3 minutes
- The New Setup•2 minutes
- Typing React Components•3 minutes
- JSX Element or null•2 minutes
- Typing Component Props•3 minutes
- Custom Component Prop Types•2 minutes
- The AriaLiveStatus Component Challenge•2 minutes
- Component Props and Imported Types•2 minutes
- Element within an Element•3 minutes
- The WordLetters Component Challenge•3 minutes
- Typing Function Props•3 minutes
- The Final Challenge•3 minutes
- Congrats!•1 minute
This module guides you through building a fully typed Express server with TypeScript, showing you how to structure routes, controllers, middleware, and data handling in a way that’s safe, scalable, and easy to maintain.
What's included
1 assignment24 plugins
1 assignment•Total 15 minutes
- TypeScript in Express Graded Assignment•15 minutes
24 plugins•Total 76 minutes
- Intro to Express & TypeScript•2 minutes
- Setting up an Express and TypeScript Environment•3 minutes
- Set up your environment•2 minutes
- Setting up an Express & TypeScript project•3 minutes
- Running an Express & TypeScript project•3 minutes
- Typing Express data•2 minutes
- Restarting the Express server•4 minutes
- Typing the real data•4 minutes
- Request and Response types•3 minutes
- cors and TypeScript•3 minutes
- Typing the 404 catch-all•2 minutes
- Automating the server restart•2 minutes
- A more specific Response•2 minutes
- A more specific Request•4 minutes
- Non-existent IDs•3 minutes
- String query params•3 minutes
- An even more specific Request•3 minutes
- Boolean query params•4 minutes
- Number query params•3 minutes
- Separating concerns with Router•5 minutes
- Separating concerns with controllers•4 minutes
- Adding and typing middleware•6 minutes
- Your own middleware•5 minutes
- Congratulations!•1 minute
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Reviewed on Jun 23, 2025
it was really helpful , easy to learn , exiting course
Reviewed on Aug 11, 2025
I like the two modules that were offered, but I think there should be more material.
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