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!

Posts

👋 Sign in for the ability to sort posts by relevant, latest, or top.
Handling Real-Time HK Stock Quotes Without Timeouts: A WebSocket Approach

Handling Real-Time HK Stock Quotes Without Timeouts: A WebSocket Approach

Comments
2 min read
Fixing the Silent Hang in Drizzle Kit Push on ChromeOS & Serverless Postgres (Neon)

Fixing the Silent Hang in Drizzle Kit Push on ChromeOS & Serverless Postgres (Neon)

Comments
4 min read
A Browser IPv4 CIDR Calculator — Three JavaScript Gotchas (uint32 Coercion, /0 Shift Trap, RFC 3021 /31)

A Browser IPv4 CIDR Calculator — Three JavaScript Gotchas (uint32 Coercion, /0 Shift Trap, RFC 3021 /31)

1
Comments
5 min read
I built a free GPA & student loan calculator site with pure HTML/CSS/JS — here's what I learned

I built a free GPA & student loan calculator site with pure HTML/CSS/JS — here's what I learned

1
Comments
2 min read
I built a React + Material-UI portfolio template — 198 forks later, here's how it works

I built a React + Material-UI portfolio template — 198 forks later, here's how it works

Comments
2 min read
JavaScript Performance: 8 Fixes That Actually Matter (2026)

JavaScript Performance: 8 Fixes That Actually Matter (2026)

Comments
4 min read
I Built a Voice AI Tutor in 200 Lines of Code (and Zero Backend)

I Built a Voice AI Tutor in 200 Lines of Code (and Zero Backend)

1
Comments
6 min read
Runtime Agent Governance for AI Agents in JavaScript and Node.js

Runtime Agent Governance for AI Agents in JavaScript and Node.js

Comments
4 min read
How does it add up?

How does it add up?

Comments
7 min read
Why I Built All 170 Tools to Run in the Browser (And What I Learned)

Why I Built All 170 Tools to Run in the Browser (And What I Learned)

Comments
2 min read
Client-Side Image Processing: Why Your Images Should Never Leave Your Browser

Client-Side Image Processing: Why Your Images Should Never Leave Your Browser

Comments
2 min read
I built 30 free developer tools in 4 weeks after work — here's everything I learned

I built 30 free developer tools in 4 weeks after work — here's everything I learned

Comments
4 min read
React 19.2: Activity, useEffectEvent & React Compiler — A Practical Deep Dive (2026)

React 19.2: Activity, useEffectEvent & React Compiler — A Practical Deep Dive (2026)

1
Comments
4 min read
How to Scrape JS-Rendered E-Commerce Pages Without Getting Blocked (2026 Guide)

How to Scrape JS-Rendered E-Commerce Pages Without Getting Blocked (2026 Guide)

Comments
2 min read
XCrawl vs Puppeteer vs Playwright: Which Web Scraping Tool Saves You More Time in 2026?

XCrawl vs Puppeteer vs Playwright: Which Web Scraping Tool Saves You More Time in 2026?

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