TypeScript provides several advantages over JavaScript that can lead to more robust and maintainable code. TypeScript's static typing system helps catch errors at compile time rather than at runtime, leading to more reliable code. TypeScript also includes features from the latest JavaScript standards as well as some additional features not present in JavaScript, like interfaces, generics, and tuple types. It provides better tooling support, with features like autocompletion and type checking, making the development process smoother and more efficient. It's particularly useful for large projects or teams, where its self-documenting nature and strong tooling support can greatly aid maintainability.