Type-System

An in-depth breakdown of TypeScript Literal Types. Understand unit types in set theory, how string/number literal unions replace Enums with zero runtime overhead, and how to solve object property literal widening bugs.

An exhaustive breakdown of TypeScript’s 7 primitive types. Learn how TS handles floating-point numbers, BigInts, symbols, strictNullChecks, and the critical structural differences between lowercase primitive types and uppercase Object wrappers.