Learn TypeScript fundamentals for building better large-scale JavaScript applications in this comprehensive beginner's tutorial. Explore essential concepts including built-in types, arrays, tuples, enums, functions, and objects. Dive into advanced topics such as type aliases, union and intersection types, literal types, nullable types, and optional chaining. Set up your development environment, write your first TypeScript program, configure the compiler, and learn debugging techniques. Follow along with practical examples and gain the skills needed to enhance your JavaScript development capabilities and boost your career prospects in frontend and backend development.