# Mastering TypeScript TypeScript is a superset of JavaScript that brings static typing, interfaces, and advanced tooling capabilities. By providing type safety, TypeScript makes large codebases more manageable. ## Why TypeScript? - **Static Typing**: Catch errors at compile time. - **Interfaces & Generics**: Model complex data and gain code reuse benefits. - **Better Tooling**: Autocompletion, refactoring, and debugging are vastly improved compared to plain JavaScript.
## Example ```ts interface User { name: string; age: number; } const greetUser = (user: User) => { return `Hello, ${user.name}!`; }; // TypeScript ensures 'user.name' and 'user.age' are used correctly. ``` By gradually introducing TypeScript, you can enjoy stronger tooling, fewer runtime errors, and more maintainable code in scaling projects.