Dev Tools · 1h ago
Why Your .env File Is Lying to You
Environment variables in Node.js are always strings or undefined, but TypeScript doesn't enforce types or existence. A missing DATABASE_URL or a string PORT can crash production without warning. The author argues for centralized validation at startup to catch these errors early.
Meridian48 take
The post highlights a common but avoidable pitfall; teams should adopt validation libraries like Zod or env-var rather than relying on scattered manual checks.
node-jsenvironment-variables