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Webdev

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

Articles

JavaScript

Your 'Save' Button Makes Copies. The File System Access API Doesn't.

Sep 29 · 7 min JavaScript

Stop Guessing When Scrolling Stops — Use scrollend

Sep 29 · 5 min Nextjs

Next.js Route Handlers: GET Stopped Caching in 15 — How to Cache in 16

Sep 29 · 15 min JavaScript

getCurrentPosition() Doesn't Just Check — It Prompts

Sep 26 · 5 min JavaScript

localStorage Isn't Free — It's Blocking Your Main Thread

Sep 26 · 5 min JavaScript

JSON.stringify Is Quietly Deleting Your File Uploads

Sep 26 · 6 min JavaScript

The Background Task That Waited 40 Seconds for 'Idle'

Sep 26 · 6 min Vue

Vue Composables: The Shared State Trap (+ Cheat Sheet)

Sep 22 · 13 min CSS

The Dropdown You've Been Faking for a Decade

Sep 22 · 5 min Nextjs

Next.js proxy.ts Explained (with Cheat Sheet)

Sep 22 · 12 min CSS

Stop Writing JavaScript To Fix 100vh On Mobile

Sep 22 · 6 min React

React Derived State: Why That useState Is Probably a Bug

Sep 20 · 14 min
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