TypeScript is a strongly-typed superset of JavaScript that compiles to plain JS. It adds static types, interfaces, and generics that catch errors at build time and make large codebases easier to refactor and maintain.
Overview
TypeScript extends JavaScript with an optional, structural type system. It introduces interfaces, generics, enums, union and intersection types, and rich editor tooling powered by the language server. Code is type-checked during development and transpiled to clean JavaScript for any runtime, so teams get safety without giving up the JS ecosystem.
How I Use TypeScript
I write nearly all of my React, Next.js, and Node code in TypeScript. I model domain data with interfaces and discriminated unions, type API boundaries end-to-end, and lean on generics for reusable components and utilities. Strict mode, typed props, and typed API responses let me refactor confidently and catch entire classes of bugs before runtime.
Why TypeScript?
TypeScript pays for itself the moment a project grows beyond a few files. The type system documents intent, powers autocompletion, and turns runtime surprises into compile-time errors. On teams it keeps interfaces explicit and reduces miscommunication, which is why it is my default for any non-trivial application.
