Archives

Stop checking the same field in fifteen places. Parse untrusted input once at the boundary into a type that can't be invalid — validation forgets what it learned, parsing keeps the proof in the type — and every downstream check disappears.

Stop throwing, start returning. Model failure as a value with Result, compose fallible steps on a railway, make illegal states unrepresentable, and let TypeScript force you to handle every error — no try/catch required.

Three booleans give you eight states when you only meant four. Discriminated unions make the illegal ones unrepresentable — model a value as exactly one of a fixed set of shapes and let TypeScript hold you to it.

Six concrete moves that turn functional thinking into TypeScript you can ship on Monday — pipelines over loops, expressions over statements, immutable updates, higher-order functions, composition, and closures over classes — refactored on a real orders view.

The word 'function' means two different things, and the one you learned in Java is the one TypeScript keeps punishing. A pragmatic case for thinking in equations, not recipes.

Embracing functional programming principles like purity, immutability, and declarative composition is no longer optional in modern React development, as these concepts provide the predictability and stability required to manage complex application state and build scalable architectures.

I’m kicking things off with a look at my 20-year journey from backend Java to modern frontend leadership, and outlining what you can expect from my posts on engineering, architecture, and career growth.