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

đź‘‹ Sign in for the ability to sort posts by relevant, latest, or top.
Why your React app feels slow (and how to fix it)

Why your React app feels slow (and how to fix it)

18
Comments 1
5 min read
Day 2 of my 21-day API challenge, built a Password Strength & Security Scorer API

Day 2 of my 21-day API challenge, built a Password Strength & Security Scorer API

1
Comments
3 min read
Living on the Linux Console — Part 2: casty, a Full Browser for TTY

Living on the Linux Console — Part 2: casty, a Full Browser for TTY

Comments
2 min read
Stop the Flicker: The Definitive Guide to Optimizing Claude Code Terminal UX

Stop the Flicker: The Definitive Guide to Optimizing Claude Code Terminal UX

Comments
6 min read
How I Built an AI-Powered Claw Machine Controlled via WebRTC and Lark/Feishu 🤖🪝

How I Built an AI-Powered Claw Machine Controlled via WebRTC and Lark/Feishu 🤖🪝

1
Comments 2
2 min read
10 Cool CodePen Demos (April 2026)

10 Cool CodePen Demos (April 2026)

11
Comments 2
2 min read
The Most Underestimated Function in JavaScript: `reduce()`

The Most Underestimated Function in JavaScript: `reduce()`

19
Comments 7
5 min read
OCR in the Browser: How Tesseract.js Makes PDF Text Extraction Free

OCR in the Browser: How Tesseract.js Makes PDF Text Extraction Free

2
Comments
7 min read
I Created Something Cool and Satisfying to Watch with HTML Canvas (A Plane Infinitely Drifting…

I Created Something Cool and Satisfying to Watch with HTML Canvas (A Plane Infinitely Drifting…

Comments
4 min read
Per-country free shipping thresholds in Shopify — Markets API + Theme App Extensions

Per-country free shipping thresholds in Shopify — Markets API + Theme App Extensions

Comments 1
9 min read
I built a jewelry size database for women with tiny fingers in one day

I built a jewelry size database for women with tiny fingers in one day

Comments
2 min read
How to Build a Vendor-Agnostic Logger (with a Grafana Implementation)

How to Build a Vendor-Agnostic Logger (with a Grafana Implementation)

Comments
13 min read
Your AI Is Still Billing After the User Closed the Tab

Your AI Is Still Billing After the User Closed the Tab

4
Comments
5 min read
Introducing the Fetch Client Chaos Arena

Introducing the Fetch Client Chaos Arena

Comments
2 min read
"My Team Had GCP Credits. Claude Code Wanted an Anthropic Key."

"My Team Had GCP Credits. Claude Code Wanted an Anthropic Key."

3
Comments
4 min read
đź‘‹ Sign in for the ability to sort posts by relevant, latest, or top.