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.
MCP's Tasks Extension Lets a Tool Call Run in the Background — If You Get the Object Shape Right

MCP's Tasks Extension Lets a Tool Call Run in the Background — If You Get the Object Shape Right

1
Comments
2 min read
WebAssembly in Practice — What It Is, When to Use It, and When Not To

WebAssembly in Practice — What It Is, When to Use It, and When Not To

1
Comments
4 min read
I built 59 free browser-based dev tools in vanilla JS — here's what I learned

I built 59 free browser-based dev tools in vanilla JS — here's what I learned

Comments
2 min read
React is Officially Dead in 2026 (Thanks to AI)

React is Officially Dead in 2026 (Thanks to AI)

3
Comments 5
7 min read
Your SKILL.md Works Fine Locally and Fails the Instant You Try to Share It

Your SKILL.md Works Fine Locally and Fails the Instant You Try to Share It

1
Comments
2 min read
Checking 800M Leaked Passwords in 2MB of RAM with Bloom Filters

Checking 800M Leaked Passwords in 2MB of RAM with Bloom Filters

Comments
4 min read
Getting Started with JavaScript Arrays and Most Popular Methods

Getting Started with JavaScript Arrays and Most Popular Methods

Comments
10 min read
Declarative Partial Updates: Out-of-Order HTML Streaming Without a Framework

Declarative Partial Updates: Out-of-Order HTML Streaming Without a Framework

1
Comments
4 min read
Monolith vs Microservices in MERN: Stop Following Trends and Start Solving Problems

Monolith vs Microservices in MERN: Stop Following Trends and Start Solving Problems

Comments
3 min read
Semantic Vision – interactive call graph, impact analysis, and code-to-data lineage for Python/JS/TS codebases

Semantic Vision – interactive call graph, impact analysis, and code-to-data lineage for Python/JS/TS codebases

Comments
1 min read
# Understanding Async/Await, Promise Combinators, and Concurrency Limiting in JavaScript

# Understanding Async/Await, Promise Combinators, and Concurrency Limiting in JavaScript

5
Comments
7 min read
10 Cool CodePen Demos (August 2026)

10 Cool CodePen Demos (August 2026)

9
Comments
3 min read
Why I Built a Zero-Knowledge, Client-Side Encrypted Burning Note App Over the Weekend

Why I Built a Zero-Knowledge, Client-Side Encrypted Burning Note App Over the Weekend

Comments
2 min read
I shipped a Kasiski calculator with 21 passing tests. It got 3 of 5 key lengths wrong.

I shipped a Kasiski calculator with 21 passing tests. It got 3 of 5 key lengths wrong.

Comments
6 min read
JavaScript for Beginners: Your First Step into Web Development 🚀

JavaScript for Beginners: Your First Step into Web Development 🚀

5
Comments
1 min read
đź‘‹ Sign in for the ability to sort posts by relevant, latest, or top.