TypeScript is a superset of JavaScript that adds static typing to the language, helping catch errors during development.In TypeScript, data types are explicitly defined like string, number, Boolean, unknown, void, null, undefined, and never.Type Inference in TypeScript allows the language to figure out types even if not explicitly mentioned.Other concepts in TypeScript include Intersection Types, Type Alias, Literal Type, Enum, Type Assertion, and Type Narrowing.