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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'm 16 and I built an infinite canvas that needs NO signup and shares workspaces via 5KB JSON files

I'm 16 and I built an infinite canvas that needs NO signup and shares workspaces via 5KB JSON files

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2 min read
Events in JS

Events in JS

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2 min read
Transitive dependencies explained: why a package you never installed can still break your build

Transitive dependencies explained: why a package you never installed can still break your build

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3 min read
How to Query Complex JSON and NDJSON Files with SQL (Without Writing Custom Parsers)

How to Query Complex JSON and NDJSON Files with SQL (Without Writing Custom Parsers)

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3 min read
Stop Uploading Sensitive Files: How Client-Side Web Workers Handle Local Processing

Stop Uploading Sensitive Files: How Client-Side Web Workers Handle Local Processing

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2 min read
🛠️ I Built a Hub for Everyday Web Tools (So You Don't Have To)

🛠️ I Built a Hub for Everyday Web Tools (So You Don't Have To)

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2 min read
I Built a Free Scientific Calculator With a Real Natural Math Display (No Signup)

I Built a Free Scientific Calculator With a Real Natural Math Display (No Signup)

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1 min read
The Four Ways Your Word Template Silently Breaks

The Four Ways Your Word Template Silently Breaks

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4 min read
Why I Stop Using Server-Side QR Generators (And Built a Client-Side Alternative)

Why I Stop Using Server-Side QR Generators (And Built a Client-Side Alternative)

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3 min read
Spec-Driven Development (SDD) en Acción: Conectando una Extensión de Chrome (MV3) con Windows usando Node.js

Spec-Driven Development (SDD) en Acción: Conectando una Extensión de Chrome (MV3) con Windows usando Node.js

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10 min read
Why console.log Shows 'Promise {<pending>}' Instead of Your Actual Value

Why console.log Shows 'Promise {<pending>}' Instead of Your Actual Value

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4 min read
I Built a Choking-Under-Pressure Detector for Athletes — No AI, No Sports Psych API

I Built a Choking-Under-Pressure Detector for Athletes — No AI, No Sports Psych API

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1 min read
I was tired of manually copying YouTube transcripts, so I built a 15KB Firefox extension

I was tired of manually copying YouTube transcripts, so I built a 15KB Firefox extension

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2 min read
Cookies vs LocalStorage vs SessionStorage: The Difference Developers Actually Need to Know

Cookies vs LocalStorage vs SessionStorage: The Difference Developers Actually Need to Know

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5 min read
A Substring Is Not a Speech Act: My AI Agent Executed Questions and Quotes

A Substring Is Not a Speech Act: My AI Agent Executed Questions and Quotes

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4 min read
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