Drizzle vs Prisma 2026: real bundle sizes for edge, performance in context, migration cost math, and when not to switch. Decide in 3 minutes.
5 non-coding behaviors that decide your first 90 days as a developer — from a hiring manager who's watched 20+ devs thrive or vanish.
React performance optimization driven by Profiler patterns. Three flame chart problems, three targeted fixes, and one popular optimization that backfires.
Three copy-paste configs for your eslint flat config migration — React+Vite, Node API, monorepo — plus the CI-breaking pattern no one warns you about.
Three Node.js stream patterns — file transform, HTTP proxy, CSV parser — that process GBs in ~40MB of RAM, with heap proofs and the pipeline() trap explained.
Three before/after refactors showing how CSS light-dark() deletes duplicated :root variables, prefers-color-scheme blocks, and theme toggle hacks.
node:test is stable in Node 22+. Three server-side patterns — describe/it, built-in mocking, and coverage — that replace Jest for API code.
Deno 2 runs npm. Node 22+ closed the gap. Here's when to switch, when to stay, and the migration tax most teams won't recoup.
JavaScript iterator helpers let you .map() and .filter() lazily — no intermediate arrays. Three refactors you can ship this week, and one to skip.
Three API rate limiting strategies with real Express + Redis code: fixed window, sliding window, token bucket. Plus a decision rule for picking right.