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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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I turned Fortnite's mid-season schedule into a tiny JSON dataset

I turned Fortnite's mid-season schedule into a tiny JSON dataset

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2 min read
White, Pink and Brown Noise in the Browser: Mix Five Noise Layers and Export a WAV

White, Pink and Brown Noise in the Browser: Mix Five Noise Layers and Export a WAV

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5 min read
5 Simple Ways to Improve Online Form Validation in JavaScript

5 Simple Ways to Improve Online Form Validation in JavaScript

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2 min read
Building a Browser Extension with WebAssembly (Wasm)

Building a Browser Extension with WebAssembly (Wasm)

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2 min read
Three bugs with passing tests, and what each test actually checked

Three bugs with passing tests, and what each test actually checked

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2 min read
How to Build a Browser-Based Jigsaw Puzzle Game with JavaScript and HTML5 Canvas

How to Build a Browser-Based Jigsaw Puzzle Game with JavaScript and HTML5 Canvas

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9 min read
I Built a Browser Userscript for Removing Watermarks from Gemini AI Images

I Built a Browser Userscript for Removing Watermarks from Gemini AI Images

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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
`npx wix release` does not build: how we shipped yesterday's `dist/` by mistake

`npx wix release` does not build: how we shipped yesterday's `dist/` by mistake

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5 min read
Your Wix widget loads from whichever deployment rendered the page, and that render can be cached for 35 hours

Your Wix widget loads from whichever deployment rendered the page, and that render can be cached for 35 hours

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6 min read
npm packages, types, and the quick-fix install

npm packages, types, and the quick-fix install

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2 min read
Building a browser metronome that stays in time at 1000 BPM

Building a browser metronome that stays in time at 1000 BPM

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3 min read
Mining 14,351 Chess Puzzles with Stockfish 18 (and the Illegal-FEN Trap in chess.js)

Mining 14,351 Chess Puzzles with Stockfish 18 (and the Illegal-FEN Trap in chess.js)

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5 min read
Which Branch Did My if Take? Seeing if / else if as a Flowchart

Which Branch Did My if Take? Seeing if / else if as a Flowchart

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6 min read
I Decoded 208 Round, Triangle and Hexagon QR Codes. Here's What Actually Breaks Them

I Decoded 208 Round, Triangle and Hexagon QR Codes. Here's What Actually Breaks Them

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6 min read
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