TypeScript is a statically typed, object-oriented, and compiled programming language developed by Microsoft. It is a superset of JavaScript with additional typing features.
TypeScript code is first compiled into plain JavaScript, which can run on various JavaScript runtimes.
Reasons to use TypeScript: Catching compile-time errors, static typing, clear data structure definitions with interfaces and type aliases, scalability and maintainability in large projects, and improved auto-completion and IDE support.
TypeScript is widely used in frontend technologies like React, Angular, Vue, backend technologies like Node.js, Express, various frameworks/libraries like Next.js, NestJS, and tools like GraphQL and Prisma.