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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!

Posts

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Keeping a browser video and a locally processed audio track in sync — and the 0.2s leak that broke it

Keeping a browser video and a locally processed audio track in sync — and the 0.2s leak that broke it

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3 min read
Building a serverless Chrome Extension to safely extract Facebook Group data

Building a serverless Chrome Extension to safely extract Facebook Group data

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3 min read
Handling GMT to EST Conversions in Your Code (Without the Headaches)

Handling GMT to EST Conversions in Your Code (Without the Headaches)

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1 min read
Building an Ephemeral, Zero-Database Document Generator in Vanilla/Modern JavaScript

Building an Ephemeral, Zero-Database Document Generator in Vanilla/Modern JavaScript

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5 min read
Building Cancellable API Routes with Ryvax's RequestContext

Building Cancellable API Routes with Ryvax's RequestContext

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2 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
Let's build a custom React hook for cross-tab state synchronization

Let's build a custom React hook for cross-tab state synchronization

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9 min read
Parallel, isolated Playwright mocks with msw-terrarium

Parallel, isolated Playwright mocks with msw-terrarium

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4 min read
I kept pausing Japanese streams — so I built tab-audio captions on Cloudflare Workers

I kept pausing Japanese streams — so I built tab-audio captions on Cloudflare Workers

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5 min read
I built a background remover that runs entirely in your browser

I built a background remover that runs entirely in your browser

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1 min read
Struggling to keep up with team changes across repositories? I built a local-first impact graph

Struggling to keep up with team changes across repositories? I built a local-first impact graph

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4 min read
What Is FSR? A Practical Look at FSR Video Upscaling for Browser-Based Tools

What Is FSR? A Practical Look at FSR Video Upscaling for Browser-Based Tools

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5 min read
Measuring Chaos in the Browser: a 0.057 Difference, Gone in 7 Seconds

Measuring Chaos in the Browser: a 0.057 Difference, Gone in 7 Seconds

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3 min read
My .catch() Never Ran. The Bug Was Two Lines Above It

My .catch() Never Ran. The Bug Was Two Lines Above It

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5 min read
Repository Agent-Security Gap Study — v2

Repository Agent-Security Gap Study — v2

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8 min read
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