What is the difference between TypeScript and JavaScript?

TypeScript is a superset of JavaScript that adds static typing and additional features to improve reliability and maintainability. Being dynamically typed, JavaScript allows coding with much flexibility but opens a greater loophole for runtime errors. TypeScript, therefore, introduces types to its code for type annotations, hence allowing the developer to detect errors at compile time. It supports interfaces, enums, and advanced types that enable structuring complex code. Hence, it is fit for large applications. That ultimately compiles to plain JavaScript, so it has compatibility with any environment running JavaScript. Besides, Typescript offers stronger tooling and error-checking capabilities, while JavaScript is focused on flexibility and simplicity for rapid development.