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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 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
Building Node.js REST APIs That Scale to 50k+ Requests Per Second

Building Node.js REST APIs That Scale to 50k+ Requests Per Second

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3 min read
Block Scope in JavaScript

Block Scope in JavaScript

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1 min read
Why ngx-runtime-i18n treats the active language as a signal, not an Observable

Why ngx-runtime-i18n treats the active language as a signal, not an Observable

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2 min read
Why TMDB says your Apple TV+ show airs a day early

Why TMDB says your Apple TV+ show airs a day early

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5 min read
One codebase, one website, two app stores: what Capacitor actually costs you

One codebase, one website, two app stores: what Capacitor actually costs you

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4 min read
How to Extract Dominant Colors from Images Using JavaScript and Canvas

How to Extract Dominant Colors from Images Using JavaScript and Canvas

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5 min read
JavaScript Week 06: Modules, Design Patterns, and Memory Management

JavaScript Week 06: Modules, Design Patterns, and Memory Management

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10 min read
Make a canvas fish swim: force, not animation

Make a canvas fish swim: force, not animation

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9 min read
Your canvas "A4 export" is not A4: DPI, print size, and the number nobody checks

Your canvas "A4 export" is not A4: DPI, print size, and the number nobody checks

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4 min read
How I Built Drs Kart: Building a B2B Medical Equipment Marketplace with React, Vite and Supabase

How I Built Drs Kart: Building a B2B Medical Equipment Marketplace with React, Vite and Supabase

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8 min read
Building a Production-Ready Chat Application: From Zero to Live

Building a Production-Ready Chat Application: From Zero to Live

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3 min read
Parsing Proxy Lists Safely in Node.js: Formats, Validation, and Secret-Safe Logs

Parsing Proxy Lists Safely in Node.js: Formats, Validation, and Secret-Safe Logs

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4 min read
The arbitrage that wasn't: when two markets are identical but their oracles aren't

The arbitrage that wasn't: when two markets are identical but their oracles aren't

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7 min read
Bulk-adding events to a calendar app: the .ics format from scratch

Bulk-adding events to a calendar app: the .ics format from scratch

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3 min read
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