Why TypeScript Makes You a Better Dev

TypeScript is a superset of JavaScript that adds static typing. This means you can describe the shapes of your data — objects, arrays, functions — and get errors at compile time instead of at runtime. In modern full-stack apps, TypeScript gives you better autocomplete, safer refactoring, and clearer contracts between frontend and backend. You can define types or interfaces for your API responses, database models, and component props. When to use TypeScript? Almost always for production apps, especially if the codebase will grow over time or multiple developers will work on it. For small throwaway scripts, plain JavaScript might be simpler. Simple example: Instead of guessing what a function expects, you declare it: function add(a: number, b: number): number. Now TypeScript prevents you from passing a string accidentally. TypeScript truly shines when combined with tools like Prisma (type-safe database queries), Next.js (typed server components and routes), and React (typed props and hooks).