Learn Typescript

Scrimba connects TypeScript concepts with two familiar JavaScript application settings. The sequence begins with the language, adds advanced concepts and then applies them to React and Express. It is an intermediate continuation for learners who already understand basic JavaScript.

What you will learn

• Add types to a JavaScript-style program.
• Use more advanced TypeScript features in an application.
• Apply TypeScript in React and Express workflows.

Who this suits

JavaScript learners with a solid grasp of the language’s basics.

Before you enroll

JavaScript knowledge is explicitly required. Check the current exercise and framework setup, and remember that type checking does not validate untrusted input at runtime.

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Put it into practice

Add TypeScript to a small existing JavaScript module. Resolve its type errors, then test malformed external input to see which checks still need runtime code.

Source and review

This overview is based on the provider's published information, checked on 12 October 2026. It is an editorial assessment, not a claim that we completed the resource. Time filters are approximate study ranges; projects and exercises can take longer.

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