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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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Join our latest Frontend Challenge: Comfort Food Edition 🍲

Features a CSS art prompt

Join our latest Frontend Challenge: Comfort Food Edition 🍲

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4 min read
Uploading and Storing Multipart/Form-Data Using Multer and Cloudinary

Uploading and Storing Multipart/Form-Data Using Multer and Cloudinary

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6 min read
Stop Unnecessary Re-renders in React: A Practical Guide to Faster Applications

Stop Unnecessary Re-renders in React: A Practical Guide to Faster Applications

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5 min read
🚀 Mock APIs Just Got an Upgrade: Network Delay Simulation, Error Testing & Postman Exports in Playground API v2

🚀 Mock APIs Just Got an Upgrade: Network Delay Simulation, Error Testing & Postman Exports in Playground API v2

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4 min read
Como caracteres Unicode criam letras diferentes no navegador

Como caracteres Unicode criam letras diferentes no navegador

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3 min read
I built an open, reproducible typing-speed test — and it won't show a number until it earns one

I built an open, reproducible typing-speed test — and it won't show a number until it earns one

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3 min read
Understanding Node.js Modules

Understanding Node.js Modules

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5 min read
Four AI APIs, four completely different citation formats. Getting the data out was harder than the analysis.

Four AI APIs, four completely different citation formats. Getting the data out was harder than the analysis.

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6 min read
Deterministic Snake Movement on a Wrapping JavaScript Grid

Deterministic Snake Movement on a Wrapping JavaScript Grid

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3 min read
Nobody Writes Bad Crypto. They Write Correct Crypto at Four Layers.

Nobody Writes Bad Crypto. They Write Correct Crypto at Four Layers.

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4 min read
Why 90% of CMS Hacks Happen Through Plugins (And How We Solved It With OS Process Isolation)

Why 90% of CMS Hacks Happen Through Plugins (And How We Solved It With OS Process Isolation)

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4 min read
Cómo solucionar el error \"Enable JavaScript and cookies to continue\"

Cómo solucionar el error \"Enable JavaScript and cookies to continue\"

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3 min read
Serving AI-Generated Images at Scale on Next.js: Formats, Cache and the App Router Traps

Serving AI-Generated Images at Scale on Next.js: Formats, Cache and the App Router Traps

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4 min read
I Built a Clinic Web App by Shipping Phase 1 First (No, It's Not Done Yet)

I Built a Clinic Web App by Shipping Phase 1 First (No, It's Not Done Yet)

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2 min read
AbortController Beyond fetch: The Cancellation Patterns I Use in Every React App

AbortController Beyond fetch: The Cancellation Patterns I Use in Every React App

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5 min read
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