code-philosophy

Use guard clauses following the Law of the Early Exit. Handle edge cases, nulls, and errors at the top of the function with early returns, so the main logic stays flat instead of wrapping work inside deep if blocks.

Parse don't validate means converting raw input into trusted, typed data at the system boundary instead of re-checking it throughout the code. Once data enters internal logic, no defensive checks are needed, keeping core algorithms clean.

Yes, the 5 Laws apply to React components, hooks, and state management as well as backend code. Guard clauses handle loading and error states early, and pure functions keep rendering predictable.

Fail fast means halting immediately with a descriptive error when a state is invalid, rather than patching bad data. Silent failures create complexity downstream because later code must account for half-broken states.

Pure functions are preferred where possible, but side effects like network calls, logging, and persistence are unavoidable. The philosophy asks you to isolate those effects at boundaries and keep core logic pure and predictable.