What is TypeScript ?

TypeScript is a statically typed superset of JavaScript that was designed to enhance the development of large-scale applications by introducing static typing and adding additional features to the JavaScript language. TypeScript allows developers to write code that closely resembles JavaScript while providing the benefits of static typing which helps in code debugging and also provides advanced language features.

Unlike JavaScript, In TypeScript developers have to specify the types of variables, function parameters, and return values as they are not inferred dynamically at run time. The static type checking which occurs during compile time helps to catch potential errors early in the development phase. It helps in improving code quality, better maintenance, and enhanced tooling support.

TypeScript introduced other language features such as interfaces, enums, and generics. Interfaces enable developers to define the shape of objects and classes, promoting code consistency and documentation.