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Speculation Rules API: Instant Prerender and Prefetch in Chrome

Web Dev

August 20269 min read

Speculation Rules API: Instant Prerender and Prefetch in Chrome

How I use the Speculation Rules API to prefetch and prerender pages in Chromium — the JSON syntax, eagerness levels, document rules, and how it differs from Next.js Link prefetch.

JavaScript Temporal API: The Modern Replacement for Date

Web Dev

August 20269 min read

JavaScript Temporal API: The Modern Replacement for Date

Why the Date object is broken and how Temporal fixes it with immutable types, first-class time zones, and DST-safe math — plus the current browser status.

TypeScript using Keyword: Explicit Resource Management

Software Development

August 20269 min read

TypeScript using Keyword: Explicit Resource Management

How the TypeScript using and await using keywords auto-close DB connections, files, and locks at scope end using Symbol.dispose and Symbol.asyncDispose.

pnpm Catalogs: Fix Monorepo Dependency Version Drift

Software Development

August 20269 min read

pnpm Catalogs: Fix Monorepo Dependency Version Drift

How I use pnpm workspaces and the catalog: protocol to define dependency versions once, kill version drift and package.json merge conflicts, and hand task orchestration to Turborepo.

JavaScript Iterator Helpers (ES2025): Lazy map/filter/take

Software Development

August 20269 min read

JavaScript Iterator Helpers (ES2025): Lazy map/filter/take

Iterator helpers shipped in ES2025 bring lazy map, filter, take, drop and flatMap to any iterator. Here is how they beat array chaining on memory and short-circuiting — and when the lazy path is not worth it.

Next.js 16: Migrate middleware.ts to proxy.ts

Web Dev

August 20269 min read

Next.js 16: Migrate middleware.ts to proxy.ts

Next.js 16 renamed middleware.ts to proxy.ts. Here is the mechanical migration, the silent trap that exposes routes, and why auth must move to your data layer after CVE-2025-29927.

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