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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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CVE-2026-16723: Pre-Auth RCE in Fastjson 1.x via the @JSONType Trust Branch

CVE-2026-16723: Pre-Auth RCE in Fastjson 1.x via the @JSONType Trust Branch

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7 min read
Building an Age Calculator From Scratch: Handling Dates, Leap Years, and a Modern UI

Building an Age Calculator From Scratch: Handling Dates, Leap Years, and a Modern UI

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3 min read
How to Track Costs Across Multiple AI APIs Without a Backend

How to Track Costs Across Multiple AI APIs Without a Backend

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5 min read
Building a "Find Stores Near Me" Feature with Geolocation

Building a "Find Stores Near Me" Feature with Geolocation

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4 min read
Rendering share cards on Cloudflare Workers with satori and resvg-wasm, and the 4 things that broke

Rendering share cards on Cloudflare Workers with satori and resvg-wasm, and the 4 things that broke

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3 min read
Introducing Bini.js: One Codebase, Six Platforms

Introducing Bini.js: One Codebase, Six Platforms

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1 min read
I Built a Fun Name-Based Love Calculator — Here's How It Works

I Built a Fun Name-Based Love Calculator — Here's How It Works

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1 min read
Learning, Building, Breaking, and Starting Again

Learning, Building, Breaking, and Starting Again

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2 min read
How I Built a 100% Client-Side PDF Toolkit with Zero Cloud Uploads

How I Built a 100% Client-Side PDF Toolkit with Zero Cloud Uploads

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7 min read
Build a Production-Ready OTP Verification Flow with a Global SMS API

Build a Production-Ready OTP Verification Flow with a Global SMS API

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4 min read
React Query's staleTime vs gcTime: the difference that actually bites people

React Query's staleTime vs gcTime: the difference that actually bites people

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3 min read
Convert MP4 to Transcript

Convert MP4 to Transcript

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1 min read
I tried to add a simple hit counter to my app and ended up learning why "simple" free APIs quietly fail on mobile

I tried to add a simple hit counter to my app and ended up learning why "simple" free APIs quietly fail on mobile

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3 min read
Web push from a PHP backend with no vendor: VAPID, ES256, and the six ways it fails silently

Web push from a PHP backend with no vendor: VAPID, ES256, and the six ways it fails silently

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7 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

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5 min read
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