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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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When an old business web app needs IE mode, and when it does not

When an old business web app needs IE mode, and when it does not

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3 min read
10 Cool CodePen Demos (June 2026)

10 Cool CodePen Demos (June 2026)

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3 min read
How to Build an Unlocked AI Agent for Browser Automation with Node.js, Bright Data, Gemini, and Playwright

How to Build an Unlocked AI Agent for Browser Automation with Node.js, Bright Data, Gemini, and Playwright

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20 min read
Drizzle ORM Migrations: push vs migrate (and what actually belongs in production)

Drizzle ORM Migrations: push vs migrate (and what actually belongs in production)

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1 min read
Why Calculating Age Is Harder Than Most Developers Think

Why Calculating Age Is Harder Than Most Developers Think

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2 min read
useRef in React

useRef in React

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1 min read
a width check said the string was safe to cut. it split a kanji in half.

a width check said the string was safe to cut. it split a kanji in half.

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7 min read
How I built a clean Compound Interest Calculator in Vanilla JS

How I built a clean Compound Interest Calculator in Vanilla JS

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1 min read
Frontend Interview Guide: Understanding Every Rendering Strategy

Frontend Interview Guide: Understanding Every Rendering Strategy

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7 min read
The Hidden Danger in React Server Actions: How to Prevent Accidental Data Leaks

The Hidden Danger in React Server Actions: How to Prevent Accidental Data Leaks

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3 min read
From Axios to alova: how we cut 80 lines to 5

From Axios to alova: how we cut 80 lines to 5

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3 min read
How I Cut Chargebacks by 40% With 15 Lines of Code at Checkout

How I Cut Chargebacks by 40% With 15 Lines of Code at Checkout

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4 min read
25 Free Browser-Based Tools Every Developer Should Bookmark

25 Free Browser-Based Tools Every Developer Should Bookmark

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2 min read
I built an AI Chrome extension with zero backend cost — here's the exact architecture

BYOK privacy vs onboarding friction

I built an AI Chrome extension with zero backend cost — here's the exact architecture

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8 min read
Defensive React: Sandboxing Third-Party UI Components ⚡

Defensive React: Sandboxing Third-Party UI Components ⚡

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3 min read
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