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.
Is This How We'll Build Websites Soon? (webMCP Live Demo 🚀)

Chrome's experimental protocol for AI agents

Is This How We'll Build Websites Soon? (webMCP Live Demo 🚀)

153
Comments 143
4 min read
How I Built 100 Browser-Based Image Tools With No Server (FFmpeg WASM, PDF-lib, AI Background Removal)

How I Built 100 Browser-Based Image Tools With No Server (FFmpeg WASM, PDF-lib, AI Background Removal)

Comments
4 min read
agentfit: Trim Agent Message History to Fit Your Context Window

agentfit: Trim Agent Message History to Fit Your Context Window

Comments
5 min read
agenttrace: Track Cost and Latency Across Every LLM Call in Your Agent

agenttrace: Track Cost and Latency Across Every LLM Call in Your Agent

Comments
5 min read
agentcast: Validate and Retry LLM JSON Responses Until They Match Your Schema

agentcast: Validate and Retry LLM JSON Responses Until They Match Your Schema

Comments
5 min read
agentsnap: Jest-Style Snapshot Tests for AI Agent Tool Calls

agentsnap: Jest-Style Snapshot Tests for AI Agent Tool Calls

Comments
5 min read
agentguard: Network Egress Allowlist for AI Agent Tools

agentguard: Network Egress Allowlist for AI Agent Tools

Comments
5 min read
Understanding JavaScript Data Types: A Guide for Beginners

Understanding JavaScript Data Types: A Guide for Beginners

Comments
2 min read
ChatGPT Can't Render Your Site. Here's What Happens When You Ask it to Audit One Anyway.

ChatGPT Can't Render Your Site. Here's What Happens When You Ask it to Audit One Anyway.

Comments
6 min read
I built a privacy-first JSON viewer for Chrome after I got tired of waiting

I built a privacy-first JSON viewer for Chrome after I got tired of waiting

1
Comments 5
3 min read
Cosmic AI Agents vs. Contentful Skills: Two Very Different Visions of AI in the CMS

Cosmic AI Agents vs. Contentful Skills: Two Very Different Visions of AI in the CMS

Comments
5 min read
I find Japan-shaped holes in global software

I find Japan-shaped holes in global software

1
Comments
4 min read
bitte-telegram-launcher: Turn Any Bitte Agent into a Telegram Bot

bitte-telegram-launcher: Turn Any Bitte Agent into a Telegram Bot

Comments
5 min read
The Node.js Mistake That Cost My Client $3,000 in AWS Bills

Tight loops and missing backoff logic

The Node.js Mistake That Cost My Client $3,000 in AWS Bills

24
Comments 17
2 min read
How to Use the any Type and When to Avoid It

How to Use the any Type and When to Avoid It

7
Comments 2
8 min read
đź‘‹ Sign in for the ability to sort posts by relevant, latest, or top.