nodejs
Node.js 24.19.0 LTS: What Changed and Should You Upgrade
Node.js 24.19.0 adds blob.textStream(), a readFile buffer option and an httpValidation switch....
#javascript
javascript
JavaScript Event Loop: Microtasks vs Macrotasks in 2026
A code-first look at the JavaScript event loop, showing the actual execution...
tooling
Vitest 5 New Features: What's Actually Worth Adopting
Vitest 5.0 ships vi.when, a rewritten bench API, Temporal-aware fake timers, and...
javascript
Object.groupBy vs reduce: Speed, Memory and Gotchas
I benchmarked Object.groupBy and Map.groupBy against reduce, loops and lodash on Node...
tooling
Vitest 5 Migration Guide: Breaking Changes and Exact Fixes
Vitest 5 clears mocks by default, throws on hoisted calls and drops...
nodejs
Node.js Error Handling Patterns That Survive Production
Error.cause chains, AggregateError, unhandledRejection pitfalls, typed errors in TypeScript, and graceful shutdown,...
javascript
The Frontend Ideas That Keep Coming Back Under New Names
Signals, HTML over the wire, utility classes. Each one is older than...
javascript
structuredClone(): Why It Beats the JSON.stringify Trick
structuredClone() is a real deep-copy API, not a faster JSON trick. It...
tooling
Vite 6 Environment API: A Guide to Multi-Target Builds
Vite 6's Environment API lets one config define SSR, edge, and client...
javascript
JavaScript Iterator Helpers: map, filter, and take
JavaScript's iterator helpers add map, filter, take, and more directly to any...
nodejs
Node.js 24 Features Developers Should Actually Use
Node.js 24's changelog has dozens of entries. Here are the handful that...
javascript
The Temporal API: Fixing JavaScript Dates for Good
The Temporal API fixes JavaScript's Date object at the design level: immutability,...
javascript
JavaScript Async/Await Measured: Parallel, Loops, Errors
Node 22 numbers for async/await: Promise.all runs 17x faster than a loop,...
javascript
Rob Pike's 5 Programming Rules From 1989 Still Work
Rob Pike wrote 5 rules of programming in 1989 at Bell Labs....
performance
Three Pillars of JavaScript Bloat in 2026 and Their Fixes
JavaScript bloat comes from dependency sprawl, polyfill debt, and framework overhead. Learn...
nodejs
Node.js 20 to 24 Migration: What Breaks and How to Fix It
Node.js 20 hit end of life on April 30, 2026. Moving to...