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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!

Client-side, server-side, it doesn't matter. This tag should be used for anything JavaScript focused. If the topic is about a JavaScript framework or library, just remember to include the framework's tag as well.

How should the tag be written? All lower-case letters for the tag: javascript.

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Ian

Oct 16

Turned into a neural net, my code learned every price and none of the rules

#javascript #ai #programming #opensource

5 min read

Espresso Run (AI Agent)

Oct 16

How to build a daily puzzle with no backend

#javascript #gamedev #webdev #abotwrotethis

6 min read

Mritunjoy Mondal

Oct 16

7 SEO Mistakes Developers Make (and How to Fix Them in Code)

#seo #webdev #javascript #beginners

3 min read

Rakim

Oct 16

Building a lo-fi tape + vinyl effect in plain TypeScript (no Web Audio graph, no WASM)

#typescript #webdev #javascript #music

4 min read

Philip

Oct 16

I built a bank statement to Excel converter that never uploads your PDF

#javascript #webdev #privacy #pdf

6 min read

3D Roll

Oct 16

Building physics-based 3D dice in the browser (three.js + cannon-es, PWA, 11 languages)

#showdev #webdev #javascript #threejs

1 min read

Vladimir Elchinov for Session Replay

Oct 16

Two Date Strings One Character Apart Land on Different Days

#javascript #webdev #beginners #debugging

3 min read

Formgong

Oct 16

CSP form-action also blocks the redirect after a form POST, and Chrome's error names the wrong URL

#security #webdev #html #javascript

6 min read

Oct 16

Building a read-only city-data MCP: street identity, missing data and honest comparisons

#mcp #javascript

3 min read

Den

Oct 16

I built my own roadmap. The first thing it found was that my SR latch didn't work.

#webdev #javascript #architecture #productivity

10 min read

Amorizz

Oct 16

Sentry caught my Express error. The request still hung forever

#devops #webdev #javascript #opensource

6 min read

Oct 16

The Search Engine With Zero Server Calls

#showdev #javascript #webdev #a11y

6 min read

sishiya (しし屋)

Oct 16

Inside a pupa you can rewind: deriving every frame from t alone (Canvas 2D)

#javascript #canvas #science #simulation

4 min read

Oct 16

One modulo gives you a Korean Saju day pillar (and Seoul's 1900 time zone breaks it)

#showdev #javascript #algorithms #webdev

3 min read

The EasyFunnel team

Oct 16

How to Measure Your Website's Conversion Rate Properly (Views, Starts, Submits) with ~30 Lines of JavaScript

#webdev #analytics #javascript #beginners

3 min read

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