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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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Yes, {} + [] = 0. No, JavaScript Isn’t Broken

Born from airport boredom and spec quirks
sylwia-lask profile

Yes, {} + [] = 0. No, JavaScript Isn’t Broken

#javascript #webdev #node #programming
137
Picked as gem Comments 102
5 min read
Are You a Web Developer or a Browser Expert? 7 Tests I Failed Building a Photo Editor That Never Uploads Your Photos
akhourianmolkumar profile

Are You a Web Developer or a Browser Expert? 7 Tests I Failed Building a Photo Editor That Never Uploads Your Photos

#webdev #javascript #ai #tutorial
34
Comments 87
7 min read
Claude Code Custom System Prompts in 2026: Overriding Defaults, Appending Instructions, and What You Cannot Change
jsmanifest profile

Claude Code Custom System Prompts in 2026: Overriding Defaults, Appending Instructions, and What You Cannot Change

#typescript #ai #javascript #webdev
Comments
13 min read
Running ffmpeg, Whisper and background removal in the browser: lessons learned
dennykot profile

Running ffmpeg, Whisper and background removal in the browser: lessons learned

#webassembly #javascript #machinelearning #performance
Comments
3 min read
Why I Built a 100% In-Browser Privacy Toolkit (And How to Manipulate PDFs in Memory Without a Backend)
toolnexus profile

Why I Built a 100% In-Browser Privacy Toolkit (And How to Manipulate PDFs in Memory Without a Backend)

#webdev #javascript #opensource #programming
Comments
5 min read
Counting LZW codes to see why dithered GIFs come out bigger
iterandum profile

Counting LZW codes to see why dithered GIFs come out bigger

#webdev #javascript
Comments
4 min read
Extracting text from a PDF without a PDF library: the T* trap
ii-x-ai profile
ii-x

Extracting text from a PDF without a PDF library: the T* trap

#showdev #pdf #javascript #programming
Comments
3 min read
Your bank's CSV export is the messiest API you will ever consume
fuxiaohua profile

Your bank's CSV export is the messiest API you will ever consume

#csv #webdev #javascript #node
Comments
6 min read
Stop Writing while (true) reader.read() Loops. Streams Are Iterable Now
iamprincejkc profile
JKC

Stop Writing while (true) reader.read() Loops. Streams Are Iterable Now

#code #javascript #tutorial #webdev
Comments
4 min read
I Deleted My Scroll-Lock Library's Ugly Hack. `scrollbar-gutter` Replaces It.
parsajiravand profile

I Deleted My Scroll-Lock Library's Ugly Hack. `scrollbar-gutter` Replaces It.

#css #webdev #frontend #javascript
Comments
6 min read
Mapping a picture onto a Minecraft skin in the browser: what worked and what didn't
zhifen_zhu_3df68293e0ddb6 profile

Mapping a picture onto a Minecraft skin in the browser: what worked and what didn't

#webdev #javascript #gamedev #canvas
Comments
3 min read
Bridging Telecom and the Web: Integrating a Self-Hosted Asterisk PBX into a MERN Stack CRM
malek_mostafa_7db579d813b profile

Bridging Telecom and the Web: Integrating a Self-Hosted Asterisk PBX into a MERN Stack CRM

#backend #javascript #node #webdev
Comments
6 min read
Batch-Renaming Users' Files With No Backend: File System Access API, the Firefox/Safari Fallback, and Why I Ship a ZIP Anyway
nibbo profile
Nibbo

Batch-Renaming Users' Files With No Backend: File System Access API, the Firefox/Safari Fallback, and Why I Ship a ZIP Anyway

#javascript #webdev #tutorial #browser
Comments
2 min read
How I made it easier to generate beautiful cards for my Discord bot
gusarov_dev profile

How I made it easier to generate beautiful cards for my Discord bot

#showdev #javascript #node #opensource
Comments
7 min read
How to Code a Stock & Crypto "Average Down" (DCA) Algorithm in Vanilla JS
raj-lakkad profile
Raj

How to Code a Stock & Crypto "Average Down" (DCA) Algorithm in Vanilla JS

#javascript #webdev #programming #finance
1
Comments
5 min read
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