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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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Firefox Accessibility DevTools: ARIA Debugging, Contrast Checking, and Screen Reader Testing

Firefox Accessibility DevTools: ARIA Debugging, Contrast Checking, and Screen Reader Testing

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4 min read
Add a Link Preview Smoke Test to Your Deploy Pipeline (Node Script + GitHub Actions)

Add a Link Preview Smoke Test to Your Deploy Pipeline (Node Script + GitHub Actions)

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5 min read
DOM - Document Object Model

DOM - Document Object Model

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1 min read
I Built a Free Open Graph Link Preview Tool for Developers 🚀

I Built a Free Open Graph Link Preview Tool for Developers 🚀

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1 min read
Cross-Browser Testing with Firefox: Catching Gecko vs Blink Bugs Early

Cross-Browser Testing with Firefox: Catching Gecko vs Blink Bugs Early

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4 min read
WebAssembly in Firefox: What Is and Isn't Supported (2024-2025 Status)

WebAssembly in Firefox: What Is and Isn't Supported (2024-2025 Status)

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3 min read
Svelte Error Boundaries: Contain the Crash Instead of Losing the Page

Svelte Error Boundaries: Contain the Crash Instead of Losing the Page

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4 min read
Firefox DevTools: Performance Profiling Guide for JavaScript Developers

Firefox DevTools: Performance Profiling Guide for JavaScript Developers

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4 min read
A reusable tooltip built with a custom element

A reusable tooltip built with a custom element

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3 min read
Seven Edge Cases I Tested in an Offline Invoice Tool (JavaScript, PDF, Security)

Seven Edge Cases I Tested in an Offline Invoice Tool (JavaScript, PDF, Security)

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5 min read
Normalizing Thousands of Short Meme Clips with ffmpeg: Loudness, Silence Trimming and Small Files for a Browser Soundboard

Normalizing Thousands of Short Meme Clips with ffmpeg: Loudness, Silence Trimming and Small Files for a Browser Soundboard

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6 min read
4.2 / 0.6 = 7.000000000000001: testing calculator formulas against hand-worked examples

4.2 / 0.6 = 7.000000000000001: testing calculator formulas against hand-worked examples

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4 min read
Parsing 12' 6" and 2.4 m: measurement input that doesn't annoy people

Parsing 12' 6" and 2.4 m: measurement input that doesn't annoy people

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5 min read
A 403 error page is not a noindex audit of the original page

A 403 error page is not a noindex audit of the original page

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3 min read
An incident report nobody could open, an extension that wanted my token, and 80 lines instead

An incident report nobody could open, an extension that wanted my token, and 80 lines instead

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3 min read
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