TypeScript
Declaration Files and Publishing Types Other People Will Actually Use
How .d.ts files, module augmentation, and package.json exports maps work together, and the mistakes that quietly break your library's consumers.
3 min read
Tag
Node.js
7 articles
JavaScript
Date/Time Handling With the Temporal API
Why the legacy Date object keeps causing bugs, what Temporal's PlainDate, ZonedDateTime, and Instant types fix, and how to plan a real migration.
3 min read
JavaScript
The Regular Expressions Engineers Actually Need
A practical tour of the regex features worth mastering — named groups, lookaround, sticky matching, Unicode properties — and when to reach for a parser instead.
3 min read
JavaScript
WeakMap, WeakRef, and Getting Serious About Memory
How WeakMap, WeakRef, and FinalizationRegistry actually work, where each one earns its place, and why most of them belong in library code, not app code.
3 min read
JavaScript
ESM vs CommonJS in 2026: What Actually Matters Now
A practical look at where ESM and CommonJS interop still breaks in 2026, and how to pick a module format for a new library or app without regret.
3 min read
JavaScript
Promise.all, allSettled, race, and any: Picking the Right Combinator
A practical guide to choosing between Promise.all, allSettled, race, and any, with the failure modes each one is actually designed to handle.
3 min read
JavaScript
The Event Loop, Microtasks, and Macrotasks, Explained Properly
A precise walkthrough of how the JS event loop orders microtasks and macrotasks, with the interleaving bugs that actually bite in production code.
3 min read