TypeScript is an open-source programming language that is a superset of JavaScript. It was developed by Microsoft and released in 2012. TypeScript adds optional static type-checking and other features to JavaScript that make it more suitable for large-scale software development.
TypeScript offers features such as static typing, interfaces, classes, enums, generics, and more. It allows developers to catch errors during development instead of runtime, leading to more robust code. TypeScript code is transpiled into JavaScript code, which means that it can be run on any browser or platform that supports JavaScript.
TypeScript is becoming increasingly popular, particularly for building large-scale applications, as it offers several advantages over plain JavaScript, including improved code organization, better error handling, and better code readability. It can be used with popular frameworks such as React, Angular, and Vue.js, among others.