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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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Where Should I Store a JWT? localStorage, Cookies, and the XSS/CSRF Trade-off

Where Should I Store a JWT? localStorage, Cookies, and the XSS/CSRF Trade-off

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11 min read
I shipped a dark mode hook. Then I found four bugs my own demo never hit.

I shipped a dark mode hook. Then I found four bugs my own demo never hit.

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6 min read
Command Injection (CWE-78): From Auto-Detected Finding to Live Exploit to Fixed — Fully Offline

Command Injection (CWE-78): From Auto-Detected Finding to Live Exploit to Fixed — Fully Offline

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4 min read
There's no superscript "q" in Unicode — and other things I learned building a superscript generator

There's no superscript "q" in Unicode — and other things I learned building a superscript generator

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2 min read
Fifty Green Tests, Two Real Bugs, and the Oracle One `npm install` Away

Fifty Green Tests, Two Real Bugs, and the Oracle One `npm install` Away

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9 min read
I Raised My WebP AVIF SSIMULACRA2 Target to 65. The Encoder Still Passed at 60

I Raised My WebP AVIF SSIMULACRA2 Target to 65. The Encoder Still Passed at 60

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11 min read
Conditional Statements in JavaScript

Conditional Statements in JavaScript

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6 min read
Debugging Is Thinking, Not Just Searching

Debugging Is Thinking, Not Just Searching

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4 min read
iOS Safari can't decode your .mov, and the reason is 2 bytes deep in the container

iOS Safari can't decode your .mov, and the reason is 2 bytes deep in the container

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5 min read
El bug que no era un bug: por qué tu PWA instalada nunca ve el fix que ya subiste

El bug que no era un bug: por qué tu PWA instalada nunca ve el fix que ya subiste

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2 min read
A Self-Correcting Solar System Baseline From Sunrise/Sunset Data

A Self-Correcting Solar System Baseline From Sunrise/Sunset Data

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11 min read
Stop Debouncing Resize. The Browser Already Watches It.

Stop Debouncing Resize. The Browser Already Watches It.

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5 min read
52 Days of Silent Zeros: The Stop Hook Payload Has No usage Field

52 Days of Silent Zeros: The Stop Hook Payload Has No usage Field

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19 min read
Code Is Open, Secrets Aren't: Organizing Your Project for AI Agents

Code Is Open, Secrets Aren't: Organizing Your Project for AI Agents

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1 min read
I built 59 free browser-based dev tools in vanilla JS — here's what I learned

I built 59 free browser-based dev tools in vanilla JS — here's what I learned

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2 min read
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