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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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kandz

Jul 11

How Random is Random? Generating Cryptographically Secure UUIDs (v4) in the Browser

#security #javascript #webdev #ai

3 min read

Enabling interpolation via explicit types

Parsa J

Jul 8

You can't transition a CSS variable. @property says otherwise.

#css #webdev #frontend #javascript

4 min read

Jun 7

How we cut INP from 480ms to under 200ms on a legacy site (no rewrite)

#webdev #performance #javascript #webperf

1 min read

Jun 7

Screenshot APIs vs Headless Chrome: Benchmarks, Costs, and Decision Framework

#javascript #tutorial #webdev #node

3 min read

Amar Gul

Jun 20

I Built a Neural Network You Can Watch Train — Forward Pass, Loss, and Backprop, Animated

#react #javascript #machinelearning #webdev

3 min read

Alex Chen

Jun 11

Testing JavaScript: Practical Guide to Confident Code (2026)

#javascript #testing #tutorial #webdev

4 min read

Fazal Shah

Jun 7

Lottie Animations in Astro.js: A Complete Guide

#architecture #frontend #javascript #tutorial

4 min read

Jonas Hämmerle

Jul 11

How to validate email addresses properly in 2026

#webdev #api #tutorial #javascript

2 min read

Mahesh

Jun 11

I Built 40+ Free Browser Games in Vanilla JS — Here's What I Learned

#gamedev #javascript #webdev #games

3 min read

benjamin

Jun 11

I built a zero-dep CLI that finds unused dependencies — and is wrong less often than depcheck

#showdev #javascript #webdev #opensource

3 min read

Destiny

Jun 6

I’m 16, and I Built a Gamified Full-Stack CBT App with 3D Graphics. Here is My Journey.

#webdev #javascript #node #architecture

3 min read

Maaz Khan

Jul 10

Bypassing Shadow DOMs & Same-Origin Iframes: How I Solved LinkedIn's Massive SDUI Update

#javascript #webdev #extensions #automation

5 min read

swift king

Jun 30

Why I Stopped Using Cloud Converters and Built My Own

#showdev #javascript #privacy #webdev

2 min read

Mahiro Hirakawa

Jul 11

ime bugs, display-width bugs, and bidi bugs are the same bug

#debugging #frontend #javascript #webdev

4 min read

Jul 7

I Built a Zero-Dependency Env Validator with Full TypeScript Inference - Here's Why

#showdev #javascript #node #typescript

7 min read

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