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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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How I Built a Client-Side Engine to Process 75,000 Excel Rows in the Browser (Without Crashing)

How I Built a Client-Side Engine to Process 75,000 Excel Rows in the Browser (Without Crashing)

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2 min read
Build a playable 2D game in React — from zero to ~40 lines with CarverJS

Build a playable 2D game in React — from zero to ~40 lines with CarverJS

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3 min read
I Built a Utility Library for Angular Signals, here's What I Learned

I Built a Utility Library for Angular Signals, here's What I Learned

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4 min read
How I built a privacy-first AI medical tool in a single HTML file

How I built a privacy-first AI medical tool in a single HTML file

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2 min read
This Free JS Docx Editor Impressed Me

This Free JS Docx Editor Impressed Me

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2 min read
I Built a Free QR Code Generator from Scratch — 24 Types, No Sign-Up, No Expiry

I Built a Free QR Code Generator from Scratch — 24 Types, No Sign-Up, No Expiry

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2 min read
CLAUDE.md for Node.js: 6 Rules That Stop AI From Generating Bad Backend Code

CLAUDE.md for Node.js: 6 Rules That Stop AI From Generating Bad Backend Code

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6 min read
Stop Defaulting to WebSockets: A Practical Guide to SSE, Polling, and Knowing When You Actually Need Them

Stop Defaulting to WebSockets: A Practical Guide to SSE, Polling, and Knowing When You Actually Need Them

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8 min read
Why email verification is 21 checks, not 1 (and why MCP makes it agent-ready)

Why email verification is 21 checks, not 1 (and why MCP makes it agent-ready)

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6 min read
Introducing KAlert.js — A lightweight animated alert dialog library for JavaScript

Introducing KAlert.js — A lightweight animated alert dialog library for JavaScript

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2 min read
From Beginner to Job Placement: My 6-Month Web Development Journey with Programming Hero

From Beginner to Job Placement: My 6-Month Web Development Journey with Programming Hero

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3 min read
Automate UGC Ad Videos with AI (Full Workflow + System Design)

Automate UGC Ad Videos with AI (Full Workflow + System Design)

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1 min read
Screenshot APIs vs Headless Chrome: Benchmarks, Costs, and Decision Framework

Screenshot APIs vs Headless Chrome: Benchmarks, Costs, and Decision Framework

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3 min read
Which is the Best AI SEO Library for JavaScript in 2026?

Which is the Best AI SEO Library for JavaScript in 2026?

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5 min read
I replaced CAPTCHA with passive biometrics after AI hit 91% bypass rate — 7 biological signals, no puzzles, free tier

I replaced CAPTCHA with passive biometrics after AI hit 91% bypass rate — 7 biological signals, no puzzles, free tier

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1 min read
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