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.
Next.js Weekly #109: Next Analyze, Prisma 7, use-nemo, State of React 2025, Error Boundaries, UI Framework Guide

Next.js Weekly #109: Next Analyze, Prisma 7, use-nemo, State of React 2025, Error Boundaries, UI Framework Guide

Comments
4 min read
My Beginner-Friendly Debugging Checklist for Any Node.js API Issue

My Beginner-Friendly Debugging Checklist for Any Node.js API Issue

Comments
3 min read
Is React.memo Still Useful in React 19? A Practical Guide for 2025

Is React.memo Still Useful in React 19? A Practical Guide for 2025

1
Comments
3 min read
I Deployed on Friday and Broke Production. Here's What I Built to Never Do That Again.

I Deployed on Friday and Broke Production. Here's What I Built to Never Do That Again.

Comments
4 min read
I Deployed on Friday and Broke Production. Here's What I Built to Never Do That Again.

I Deployed on Friday and Broke Production. Here's What I Built to Never Do That Again.

Comments
4 min read
6 Common Anti-Patterns You should avoid

6 Common Anti-Patterns You should avoid

Comments
5 min read
Stop Memory Leaks! The Practical Guide to WeakMap and WeakSet

Stop Memory Leaks! The Practical Guide to WeakMap and WeakSet

Comments
4 min read
Singleton Pattern issue in playwright browser

Singleton Pattern issue in playwright browser

Comments
2 min read
The subtle trap of useMemo for large collections - and a tiny alternative

The subtle trap of useMemo for large collections - and a tiny alternative

1
Comments 1
2 min read
Stop Blocking AI Bots. Charge Them. (I built a Payment Protocol in Node.js)

Stop Blocking AI Bots. Charge Them. (I built a Payment Protocol in Node.js)

1
Comments
2 min read
I Built 404ping — A Lightweight API Testing CLI (curl + Postman had a baby)

I Built 404ping — A Lightweight API Testing CLI (curl + Postman had a baby)

Comments
4 min read
Understanding npm Package Versioning: A Guide to Major, Minor, and Patch Updates

Understanding npm Package Versioning: A Guide to Major, Minor, and Patch Updates

Comments
2 min read
Building a Weather-Aware Activity Tool with OpenWeather & Mapbox

Building a Weather-Aware Activity Tool with OpenWeather & Mapbox

Comments
2 min read
Building a Small Useful Tools Hub (Feedback Welcome!) – UseAnyTool.com

Building a Small Useful Tools Hub (Feedback Welcome!) – UseAnyTool.com

Comments
2 min read
Why I Prefer Web Fundamentals Over the Endless Framework Cycle

Why I Prefer Web Fundamentals Over the Endless Framework Cycle

Comments
3 min read
🧼 Clean Code in JavaScript

🧼 Clean Code in JavaScript

Comments
1 min read
React JS API Example for Beginners

React JS API Example for Beginners

Comments
1 min read
Harika’s Free Dictionary API – Simple, Fast & No Auth Required

Harika’s Free Dictionary API – Simple, Fast & No Auth Required

Comments
1 min read
I built a tiny autosave engine for web forms

I built a tiny autosave engine for web forms

1
Comments
1 min read
How I Achieved a 95+ Lighthouse Performance Score in a Next.js E-commerce Site (And How You Can, Too)

How I Achieved a 95+ Lighthouse Performance Score in a Next.js E-commerce Site (And How You Can, Too)

Comments
4 min read
JavaScript Clean Code Mastery: Part 2 - Functions That Do One Thing Well

JavaScript Clean Code Mastery: Part 2 - Functions That Do One Thing Well

1
Comments
7 min read
How to Prevent Objects from Being Modified in JavaScript

How to Prevent Objects from Being Modified in JavaScript

Comments
2 min read
Como faço isso?

Como faço isso?

Comments
2 min read
How to do it?

How to do it?

Comments
2 min read
Implementing Authentication Middleware in Next.js with i18n Support

Implementing Authentication Middleware in Next.js with i18n Support

Comments
3 min read
loading...