TypeScript Types Demystified: Simple Types, Special Types, and Type Inference

TypeScript provides a robust type system mapping directly to JavaScript primitives, including string and number. Users can correctly type variables, arrays, and function parameters. The system includes special types such as any, unknown, never, and void. In functions, both inputs and outputs require types, although the compiler can implicitly set output types through inference. This allows developers to define function behavior while maintaining type safety across various return scenarios and primitive data structures.