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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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Finding Duplicate Photos in the Browser (Without Uploading Your Library)

Finding Duplicate Photos in the Browser (Without Uploading Your Library)

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7 min read
Express Middleware — What It Actually Is and How It Really Works

Express Middleware — What It Actually Is and How It Really Works

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4 min read
Null Bytes, Dead Streams, Last Chunk

Null Bytes, Dead Streams, Last Chunk

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3 min read
Optimizing Large DOCX to PDF Conversions in the Browser: Web Workers to Prevent UI Freezes

Optimizing Large DOCX to PDF Conversions in the Browser: Web Workers to Prevent UI Freezes

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9 min read
Building Blazing-Fast Ebook Converters: Debouncing, Chunking & Web Workers for Responsive UI

Building Blazing-Fast Ebook Converters: Debouncing, Chunking & Web Workers for Responsive UI

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9 min read
Demystifying EPUB to PDF: Handling Complex Input Schemas and Securing Microservices Without Leaking JWT Claims

Demystifying EPUB to PDF: Handling Complex Input Schemas and Securing Microservices Without Leaking JWT Claims

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9 min read
How I Built a Free PSD to PNG Converter That Runs Entirely in the Browser

How I Built a Free PSD to PNG Converter That Runs Entirely in the Browser

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2 min read
I Accidentally force-pushed to main at 11 PM — So I Built an Interactive Git Undo Tool

I Accidentally force-pushed to main at 11 PM — So I Built an Interactive Git Undo Tool

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4 min read
Base64 vs Base64URL vs URL Encoding: When Should You Use Each?

Base64 vs Base64URL vs URL Encoding: When Should You Use Each?

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5 min read
How to Decode Base64 Safely: Text, Images, Files, and Common Errors

How to Decode Base64 Safely: Text, Images, Files, and Common Errors

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4 min read
React Email 6.0, Vercel got hacked, Prevent flash before hydration, Logging in Next.js, shader-lab, TypeScript 7.0, nextmap

React Email 6.0, Vercel got hacked, Prevent flash before hydration, Logging in Next.js, shader-lab, TypeScript 7.0, nextmap

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4 min read
Crashing the Browser with 4K Video: How to Optimize Client-Side Video Cropping Using Web Workers and WebCodecs

Crashing the Browser with 4K Video: How to Optimize Client-Side Video Cropping Using Web Workers and WebCodecs

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7 min read
How I Built an API That Cuts LLM Token Costs by 11-22%

How I Built an API That Cuts LLM Token Costs by 11-22%

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3 min read
Stop Uploading Private PDFs: Troubleshoot Corrupt Headers, Viewport Calculations, and Parsing Failures in Secure Sandboxed PDF Workflows

Stop Uploading Private PDFs: Troubleshoot Corrupt Headers, Viewport Calculations, and Parsing Failures in Secure Sandboxed PDF Workflows

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8 min read
Why Cloud Audio Converters are a Scalability Trap: Going Local-First with WebAssembly

Why Cloud Audio Converters are a Scalability Trap: Going Local-First with WebAssembly

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7 min read
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