// writing
Posts tagged #javascript — Page 2
A mix of technical deep-dives, career reflections, and dispatches from the road.
tag: #javascript
developmentAug 16, 2026· 3 min
revalidateTag vs updateTag: Next.js Split Cache Invalidation in Two
Next.js 16 gave cache invalidation two different functions instead of one, and the split maps to a real distinction: content that can lag versus content the…
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developmentAug 10, 2026· 3 min
Trusted Types Is Baseline: DOM XSS Is Now a Type Error
Firefox 148 shipped Trusted Types in February 2026, making it Baseline. Here's how to turn every dangerous innerHTML assignment in your app into a TypeError…
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developmentAug 9, 2026· 3 min
The Long Animation Frames API: Find What Actually Broke Your INP
Your field data says INP is 400ms. Your local profile says everything is fine. The Long Animation Frames API closes that gap by naming the script, the…
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developmentAug 2, 2026· 3 min
The Sanitizer API: Safe HTML Injection Without DOMPurify
The browser can now strip XSS from an HTML string during parsing. Here's how setHTML works, why its config can only narrow the allowlist, and how to ship it…
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developmentJul 23, 2026· 3 min
JavaScript Iterator Helpers: Stop Converting to Arrays First
Iterator helpers bring map, filter, take, and drop to any iterator without spreading into an array first.
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developmentJul 16, 2026· 4 min
The Soft Navigations API: Core Web Vitals Finally Work in SPAs
Chrome ships the Soft Navigations API unflagged in 151, giving single-page apps a standardized way to measure LCP, INP, and CLS per route change instead of…
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developmentJul 13, 2026· 3 min
Declarative Shadow DOM: Web Components That Render Before Your JavaScript Does
Shadow DOM used to mean a blank page until your bundle loaded. The shadowrootmode attribute changed that, and it has been in every major browser since early…
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developmentJul 12, 2026· 4 min
OPFS: A Real File System in the Browser
The Origin Private File System gives you byte-level, synchronous file I/O in the browser. Here's how it works, when to reach for it, and why it's the reason…
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developmentJul 6, 2026· 3 min
URLPattern: The Browser Finally Has a Built-In Router
URLPattern went Baseline in late 2025, giving the platform a native, framework-free way to match and parse URLs.
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