Learn Intermediate TypeScript

Dive into intermediate TypeScript concepts including class types, type narrowing, and generics.

2,156 learners enrolled
  • Skill level

  • Time to complete

    Average based on combined completion rates — individual pacing in lessons, projects, and quizzes may vary
    3 hours
  • Certificate of completion

    Included with paid plans
  • Prerequisites

    1 course
    We suggest you complete the following courses before you get started with Learn Intermediate TypeScript:
    • Learn TypeScript

About this course

This comprehensive course on TypeScript takes you from setting up TypeScript in VSCode to mastering its intermediate concepts and features. You’ll learn how to install TypeScript globally and for specific projects in VSCode on your local computer, apply TypeScript types to classes to control how class properties and methods are used. You’ll also learn how TypeScript does type narrowing, use type guards, and apply generics with classes, type parameter defaults and constraints.Through practical examples password generator and currency converter apps, you’ll gain hands-on experience in using these concepts.

Skills you'll gain

  • Set up TypeScript in VSCode on your local computer

  • Apply types to object-oriented programming patterns

  • Utilize TypeScript’s power of inference through type narrowing and type guards

  • Create reusable code with TypeScript generics


3 lessons • 3 projects • 4 quizzes

The platform

Hands-on learning

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Meet the creator of the course
Jiwon Shin
Senior Curriculum Developer at Codecademy
Jiwon is a Senior Curriculum Developer at Codecademy. She has created courses across the web development catalog on languages such as JavaScript, PHP, and CSS, frameworks like React and Node.js, and the Front-End Engineer Career Path. She also created courses on p5.js, build tools, and Intro to UI and UX Design.

Reviews from learners

  • The progress I have made since starting to use codecademy is immense! I can study for short periods or long periods at my own convenience - mostly late in the evenings.
    Codecademy Learner @ USA
  • I felt like I learned months in a week. I love how Codecademy uses learning by practice and gives great challenges to help the learner to understand a new concept and subject.
    Codecademy Learner @ UK
  • Brilliant learning experience. Very interactive. Literally a game changer if you're learning on your own.
    Codecademy Learner @ USA

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Frequently asked questions about Intermediate TypeScript

  • TypeScript is a programming language built on top of JavaScript, that allows developers to specify types for data being referenced or passed around in the script. This precision around data types enables developers to write cleaner, more intentional code and helps developers more easily catch errors and debug their programs.

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  • Practice Projects

    Guided projects that help you solidify the skills and concepts you're learning.
  • Assessments

    Auto-graded quizzes and immediate feedback help you reinforce your skills as you learn.
  • Certificate of Completion

    Earn a document to prove you've completed a course or path that you can share with your network.