One of the most significant advantages of TypeScript is its static type-checking feature. This means that the compiler checks the code for errors before it runs, reducing the likelihood of runtime errors. This feature also improves the readability of the code, making it easier for developers to understand the codebase. Additionally, TypeScript has excellent tooling support, including integrated development environments (IDEs) like Visual Studio Code and WebStorm. These tools make it easier to write, debug, and maintain TypeScript code.