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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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Comparing prices across retailers is a unit-normalization problem, not a scraping problem

Comparing prices across retailers is a unit-normalization problem, not a scraping problem

Comments 1
4 min read
Zero-install P2P file transfer: WebRTC signalling on Cloudflare Durable Objects

Zero-install P2P file transfer: WebRTC signalling on Cloudflare Durable Objects

Comments 1
4 min read
made a pdf toolkit that runs fully in the browser, no uploads — would love some feedback

made a pdf toolkit that runs fully in the browser, no uploads — would love some feedback

5
Comments
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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Comments
2 min read
Reduce Repeated HTML Traffic~Toward the Ultimate Lightweight Site~(Includes makng site)

Reduce Repeated HTML Traffic~Toward the Ultimate Lightweight Site~(Includes makng site)

Comments
2 min read
getCurrentPosition() Doesn't Just Check — It Prompts

getCurrentPosition() Doesn't Just Check — It Prompts

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Comments 2
5 min read
Everyone Greps for SQL Injection. Nobody Greps for the Other Eight.

Everyone Greps for SQL Injection. Nobody Greps for the Other Eight.

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Comments 2
4 min read
Building a Five-Letter Word Filter with Vanilla JavaScript

Building a Five-Letter Word Filter with Vanilla JavaScript

Comments
3 min read
Why a precise image color picker needs two canvases (one to read pixels, one to draw the loupe)

Why a precise image color picker needs two canvases (one to read pixels, one to draw the loupe)

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Comments
4 min read
I Built a Local Usage Intelligence Dashboard for Claude Code

I Built a Local Usage Intelligence Dashboard for Claude Code

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1 min read
160 browser-only tools later: the engineering decisions that actually mattered

160 browser-only tools later: the engineering decisions that actually mattered

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Comments 1
3 min read
Building a Chrome extension that reads Hanifi Rohingya webpages in Latin script

Building a Chrome extension that reads Hanifi Rohingya webpages in Latin script

Comments 1
6 min read
Web3 Architecture Explained Like You're 5 (From a Front-End Perspective)

Web3 Architecture Explained Like You're 5 (From a Front-End Perspective)

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1 min read
Store Locators That Crawlers Can Actually Read

Store Locators That Crawlers Can Actually Read

Comments
4 min read
Setting Firefox Bookmark Keywords From an Extension, Without an API for It

Setting Firefox Bookmark Keywords From an Extension, Without an API for It

Comments 4
5 min read
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