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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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GEO is the new SEO — and most sites are failing at it

GEO is the new SEO — and most sites are failing at it

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2 min read
Add Model Fallback to an OpenAI-Compatible Node.js App

Add Model Fallback to an OpenAI-Compatible Node.js App

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2 min read
I scanned 13 popular AI-app starter repos. 4 were clean, and the same bug was in 6 of them.

I scanned 13 popular AI-app starter repos. 4 were clean, and the same bug was in 6 of them.

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3 min read
Hoisting

Hoisting

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1 min read
Why filter(Boolean) Is Not a Nullish Filter in TypeScript đź”§

Why filter(Boolean) Is Not a Nullish Filter in TypeScript đź”§

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Comments 26
5 min read
Building a Safe Proxy Health Check in Node.js: Timeouts, Retries, and Secret-Safe Logs

Building a Safe Proxy Health Check in Node.js: Timeouts, Retries, and Secret-Safe Logs

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4 min read
I built 104 developer tools that never send your data anywhere — and made it provable, not promised

I built 104 developer tools that never send your data anywhere — and made it provable, not promised

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6 min read
Building a multiplayer game with no game server: Postgres realtime as the state machine

Building a multiplayer game with no game server: Postgres realtime as the state machine

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1 min read
Your Custom Element Is Missing From FormData — ElementInternals Fixes It

Your Custom Element Is Missing From FormData — ElementInternals Fixes It

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4 min read
Add casting to a custom HTML5 video player without breaking it

Add casting to a custom HTML5 video player without breaking it

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6 min read
Mastering Micro-Frontends with Module Federation in 2026: Patterns & Pitfalls

Mastering Micro-Frontends with Module Federation in 2026: Patterns & Pitfalls

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2 min read
I got tired of paywalls and forced signups for basic file tools, so I built BrowsersKit (100% client-side Wasm utilities)

I got tired of paywalls and forced signups for basic file tools, so I built BrowsersKit (100% client-side Wasm utilities)

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1 min read
Character limits across social APIs: .length lies, and it lies both ways

Character limits across social APIs: .length lies, and it lies both ways

Comments 2
5 min read
Your Fetch Already Streams. You're Buffering It Anyway.

Your Fetch Already Streams. You're Buffering It Anyway.

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4 min read
Build a phishing link checker in Node.js with three API calls

Build a phishing link checker in Node.js with three API calls

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Picked as gem Comments 5
8 min read
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