Tag: Functional JavaScript

All the articles with the tag "Functional JavaScript".

• Parse, Don't Validate: Making Bad Input Impossible in TypeScript

  Updated:10 Jul, 2026

  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.

• Six Functional Patterns to Stop Writing Java in JavaScript

  Updated:10 Jul, 2026

  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.

• Your Functions Aren't Functions: Why JavaScript Punishes Your Java Habits

  Updated:10 Jul, 2026

  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.