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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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Rendering 50,000 Gantt rows in Vue without a virtual list library

Rendering 50,000 Gantt rows in Vue without a virtual list library

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6 min read
🔑 JWT Verification Bugs: Pin the Algorithm, Then Prove the Fix

🔑 JWT Verification Bugs: Pin the Algorithm, Then Prove the Fix

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9 min read
An allowlist checks the address. These $126M in withdrawals all went to approved ones.

An allowlist checks the address. These $126M in withdrawals all went to approved ones.

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4 min read
Building a Data-Driven Football Prediction Engine (MeritPredict Alternative)

Building a Data-Driven Football Prediction Engine (MeritPredict Alternative)

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2 min read
Tracking Google Flights fares: New York to London was $197 on December 8 and $512 on December 20

Tracking Google Flights fares: New York to London was $197 on December 8 and $512 on December 20

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3 min read
What Should Happen After a Contact Form Fails?

What Should Happen After a Contact Form Fails?

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4 min read
Why I made my toast library show only one toast at a time

Why I made my toast library show only one toast at a time

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4 min read
Extracting Images from Public URLs into a ZIP — Design Notes from Bulk Image Download

Extracting Images from Public URLs into a ZIP — Design Notes from Bulk Image Download

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5 min read
Building a Local-First Bulk Image Pipeline in the Browser

Building a Local-First Bulk Image Pipeline in the Browser

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5 min read
Pocket shut down. Its export is five CSV columns, and this is how I import them

Pocket shut down. Its export is five CSV columns, and this is how I import them

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5 min read
Your AI-built budget app says you're -$0.00 over budget: 6 money bugs in JavaScript (and the prompts that fix them)

Your AI-built budget app says you're -$0.00 over budget: 6 money bugs in JavaScript (and the prompts that fix them)

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6 min read
A Replacement Character Ate My Last Stream Event: Debugging UTF-8 Chunk Boundaries

A Replacement Character Ate My Last Stream Event: Debugging UTF-8 Chunk Boundaries

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8 min read
We scanned 144 German online shops four months after the accessibility law kicked in

We scanned 144 German online shops four months after the accessibility law kicked in

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4 min read
PDF.js Deep Dive from Demo 4: getViewport

PDF.js Deep Dive from Demo 4: getViewport

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6 min read
Your Browser, Your AI: Air-Gapping Sensitive Audio Transcriptions with WebGPU

Your Browser, Your AI: Air-Gapping Sensitive Audio Transcriptions with WebGPU

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8 min read
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