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JavaScript

Once relegated to the browser as one of the 3 core technologies of the web, JavaScript can now be found almost anywhere you find code. JavaScript developers move fast and push software development forward; they can be as opinionated as the frameworks they use, so let's keep it clean here and make it a place to learn from each other!

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# Why Your Image Compressor Should Never Upload Files

# Why Your Image Compressor Should Never Upload Files

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4 min read
Your 150-line AI agent works in the demo. Here's what breaks in production.

Your 150-line AI agent works in the demo. Here's what breaks in production.

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2 min read
My web app fired two POST requests per submit. The fix taught me what React StrictMode is actually for.

My web app fired two POST requests per submit. The fix taught me what React StrictMode is actually for.

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3 min read
Building a Chrome Extension with Manifest V3, React, and a Shadow DOM Panel injected on Amazon published: true

Building a Chrome Extension with Manifest V3, React, and a Shadow DOM Panel injected on Amazon published: true

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2 min read
How we built a Reddit comment-tree scraper that returns upvote scores — through a residential proxy

How we built a Reddit comment-tree scraper that returns upvote scores — through a residential proxy

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6 min read
List comprehensions, generators, and the walrus: what most Python devs overlook

List comprehensions, generators, and the walrus: what most Python devs overlook

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4 min read
Introducing VidCompress: in-browser video compression for developers who hate uploading files

Introducing VidCompress: in-browser video compression for developers who hate uploading files

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4 min read
Building NoSub: a browser-based VOD player for Twitch and Kick with synced chat

Building NoSub: a browser-based VOD player for Twitch and Kick with synced chat

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2 min read
I built a date calculator site with Next.js 14. Here's what I learned, hitting PageSpeed 98/100

I built a date calculator site with Next.js 14. Here's what I learned, hitting PageSpeed 98/100

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2 min read
_action: Declarative Event Handlers in an Attribute

_action: Declarative Event Handlers in an Attribute

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6 min read
How I built a Chrome extension that speaks your notifications aloud — and the two Manifest V3 problems nobody warned me about

How I built a Chrome extension that speaks your notifications aloud — and the two Manifest V3 problems nobody warned me about

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5 min read
I built a tool that explains any error message in plain English (free, no login)

I built a tool that explains any error message in plain English (free, no login)

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1 min read
React useReducedMotion Hook: Respect prefers-reduced-motion (2026)

React useReducedMotion Hook: Respect prefers-reduced-motion (2026)

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6 min read
I built 121+ free developer tools that run 100% in your browser

I built 121+ free developer tools that run 100% in your browser

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1 min read
Fetching Data in React: A Beginner-Friendly Guide (with `fetch` and `async/await`)

Fetching Data in React: A Beginner-Friendly Guide (with `fetch` and `async/await`)

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3 min read
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