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Webdev

174 articles on Webdev — each with a runnable playground and a quiz.

Articles

JavaScript

You're collecting async iterable results with a for-await loop. Array.fromAsync does it in one call.

Aug 5 · 4 min CSS

Your browser renders everything, even what you can't see — content-visibility: auto fixes that

Aug 4 · 5 min Security

CORS Explained: The Complete Guide (with Cheat Sheet)

Aug 3 · 15 min JavaScript

Your UI is freezing because you never gave the browser a break

Aug 3 · 5 min CSS

You're writing dark-mode colors twice. light-dark() fixes that.

Aug 2 · 5 min JavaScript

You've been wrapping new URL() in try/catch. URL.parse() does it natively.

Aug 1 · 5 min CSS

CSS has no native scoping. @scope changes that.

Jul 31 · 5 min JavaScript

Array methods are eager. Iterator helpers are lazy. Here's why that matters.

Jul 30 · 5 min CSS

You reach for Sass to mix colors. color-mix() does it natively.

Jul 29 · 4 min CSS

You hand-edit headlines to avoid orphaned words. text-wrap: balance does it natively.

Jul 28 · 4 min JavaScript

You're watching window to detect element size changes. ResizeObserver watches the element itself.

Jul 26 · 4 min CSS

You use a setTimeout to trigger CSS entry animations. @starting-style makes it unnecessary.

Jul 25 · 4 min
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javascript 141frontend 96tutorial 71css 51performance 30typescript 25react 20programming 19browser 18node 16html 12nextjs 11