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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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How I Built a 100% Client-Side Video-to-MP3 Converter with WebAssembly

How I Built a 100% Client-Side Video-to-MP3 Converter with WebAssembly

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2 min read
map() method under the hood

map() method under the hood

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2 min read
How JavaScript Is Defined: From ECMAScript to Array.prototype.map

How JavaScript Is Defined: From ECMAScript to Array.prototype.map

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7 min read
Your Marketing Site Has 40 Scripts. Which Ones Are Actually Worth Keeping?

Unused scripts quietly tank site speed

Your Marketing Site Has 40 Scripts. Which Ones Are Actually Worth Keeping?

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10 min read
My daily marketing job came out ~35x cheaper as a script with one AI call than as a live agent

My daily marketing job came out ~35x cheaper as a script with one AI call than as a live agent

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5 min read
Why Money Calculations Should Not Use Floating Point

Why Money Calculations Should Not Use Floating Point

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10 min read
I built a chat app where the server has never seen a single message

I built a chat app where the server has never seen a single message

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6 min read
Building a Dual-Mode (WiFi + Bluetooth) Scratch Extension for My ESP32 Robot

Building a Dual-Mode (WiFi + Bluetooth) Scratch Extension for My ESP32 Robot

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6 min read
Capturing gclid and UTMs First-Party: Attribution That Survives to the CRM

Capturing gclid and UTMs First-Party: Attribution That Survives to the CRM

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6 min read
Event-driven architecture in Node.js: pub/sub with NATS, Kafka and Redis — and when an event is not enough

Event-driven architecture in Node.js: pub/sub with NATS, Kafka and Redis — and when an event is not enough

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13 min read
Por qué el texto invisible funciona en el nombre de TikTok y falla en el usuario de Instagram

Por qué el texto invisible funciona en el nombre de TikTok y falla en el usuario de Instagram

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4 min read
Finding the second copy of React that npm ls cannot see

Finding the second copy of React that npm ls cannot see

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2 min read
A Practical JSON Minification Workflow for Web Developers

A Practical JSON Minification Workflow for Web Developers

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4 min read
Which one? Loading Spinners vs Skeleton Screen vs Blank Page

Which one? Loading Spinners vs Skeleton Screen vs Blank Page

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3 min read
A 14-page report through HTML-to-PDF 4.8MB to 1.5MB

A 14-page report through HTML-to-PDF 4.8MB to 1.5MB

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3 min read
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