Skip to content

DEV Community

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.

👋 Sign in for the ability to sort posts by relevant, latest, or top.

Aug 8

I tested if system prompts actually matter, here's what I found

#ai #webdev #javascript #llm

2 min read

Mustafa Kaçaroğlu

Aug 21

What a Website Can Learn From Your Browser: IP, WebRTC, and IPv6

#webdev #programming #javascript #security

2 min read

Aug 9

What happens when you upload a PDF online

#webdev #privacy #javascript #webperf

7 min read

Megalraja

Sep 11

HTML vs CSS vs JavaScript:What Does Each One Do?

#html #css #javascript

2 min read

Aug 21

I built a browser chess client that can play Lichess games without becoming another chess server

#showdev #webdev #javascript #opensource

3 min read

Sep 11

7 Vulnerability Patterns I Found in AI-Generated Code (and How to Catch Them)

#security #ai #javascript #vulnerabilities

5 min read

Dan for Expo

Sep 11

Skip the manual PostHog setup: EAS wires it into your Expo app for you

#expo #reactnative #mobile #javascript

4 min read

kentog751

Aug 8

No build step, no bundler: 11 things that broke shipping Three.js into an iframe

#threejs #javascript #webgl #gamedev

10 min read

Frontend Challenge Perfect Landing Submission 🍲🥧

Aug 8

Dastarkhwan: A Taste of Home

#devchallenge #frontendchallenge #javascript

1 min read

Yuva

Aug 8

I built 59 free browser-based dev tools in vanilla JS — here's what I learned

#webdev #javascript #tools #programming

2 min read

ℋℐ𝒵ℬ𝒜 (✿◠‿◠)⭐

Sep 11

Stop Writing Smart Code. Start Writing Dumb Code.

#webdev #javascript #programming #productivity

2 min read

toolzip

Sep 11

AVIF vs WebP vs JPEG — Which Image Format Should You Use in 2026?

#webdev #javascript #performance #tools

3 min read

Sep 11

Five image compressors, one feature checklist: batch, animation, formats, limits

#webdev #javascript

3 min read

אחיה כהן

Sep 11

My safety guard was checked in 6 places. Nothing ever set it.

#javascript #debugging #opensource #testing

6 min read

Aug 31

React Lazy Loading Images: A Simple Guide to Better Performance

#react #javascript #webdev #performance

3 min read

👋 Sign in for the ability to sort posts by relevant, latest, or top.