Scrimba TypeScript Course (2026)
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Last reviewed: March 2026.
Learn TypeScript
FreeThe essential building blocks of TypeScript. Covers TS fundamentals, TS in React, TS in Express, plus a hands-on project.
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Why TypeScript?
TypeScript is JavaScript with static types. It catches bugs at compile time instead of runtime — typos, wrong argument types, missing properties. In 2026, TypeScript is the default for new React and Next.js projects. The official handbook puts it simply: you can't learn TypeScript without learning JavaScript, but TypeScript makes your JavaScript safer and easier to maintain.
What You'll Learn
- Type inference — TypeScript infers types when you don't annotate
- Union types —
string | numberfor values that can be either - Interfaces vs types — defining object shapes and reusable types
- Generics —
<T>for reusable, type-safe functions and components - Utility types —
Partial,Pick,Omit, and more
TypeScript + React
The course covers typing React components: props interfaces, generic components, and event handlers. For example:
interface ButtonProps {
label: string;
onClick: () => void;
}
function Button({ label, onClick }: ButtonProps) {
return <button onClick={onClick}>{label}</button>;
}
TypeScript + Express
You'll learn how to type Express routes, request/response objects, and middleware. Critical for building type-safe backends.
TypeScript in the Learning Paths
TypeScript modules appear in:
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