Most API errors are written for a human reading logs, not for the program that has to react. Here is what most APIs do, what the standard says, and the small set of rules that actually make errors useful.
Master React 19 by avoiding these critical anti-patterns. Learn what NOT to do with useOptimistic, useDeferredValue, useTransition, and other modern hooks to build maintainable, performant applications.
Learn how to work with React component props in TypeScript using the ComponentProps utility to streamline prop handling, even when the prop type isn't exported.
The `never` type in TypeScript represents a value that never occurs. It is used for functions that never return, throw exceptions, or have unreachable code paths.