TypeScript is essentially [[JavaScript]] with added superpowers. It's a programming language that builds on JavaScript by adding optional static typing. This means you can define the type of data a variable will hold (like a number, string, or object), which helps catch errors early on and makes your code more reliable and maintainable, especially in larger projects. TypeScript code is then compiled into regular JavaScript, so it can run anywhere JavaScript can. Think of it as a more robust and organized version of JavaScript, offering better tooling and improved code structure for complex applications.