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.
How an Unindexed Column Silently Killed Our Database under Load (and the 5-Minute Fix)

How an Unindexed Column Silently Killed Our Database under Load (and the 5-Minute Fix)

35
Comments 13
3 min read
Why I Built Templates for Rails and Go (After 10 Years of Shipping Other People's Products)

Why I Built Templates for Rails and Go (After 10 Years of Shipping Other People's Products)

2
Comments
4 min read
I Built a UUID Generator Using crypto.randomUUID() (Why Math.random() Is the Wrong Choice)

I Built a UUID Generator Using crypto.randomUUID() (Why Math.random() Is the Wrong Choice)

Comments
3 min read
I Built a Real-Time Regex Tester in the Browser (Capture Groups, Flags, No Libraries)

I Built a Real-Time Regex Tester in the Browser (Capture Groups, Flags, No Libraries)

Comments
2 min read
Array methods are eager. Iterator helpers are lazy. Here's why that matters.

Array methods are eager. Iterator helpers are lazy. Here's why that matters.

22
Comments
4 min read
What More Than Three Decades of Acrobat JavaScript Development Taught Me About Interactive PDF Forms

What More Than Three Decades of Acrobat JavaScript Development Taught Me About Interactive PDF Forms

1
Comments 1
5 min read
How to Convert PDF Pages to Images with Vue 3 and PDF.js

How to Convert PDF Pages to Images with Vue 3 and PDF.js

1
Comments
3 min read
NegotiAI – AI-Powered Sales Negotiation Assistant for Smarter Business Conversations

NegotiAI – AI-Powered Sales Negotiation Assistant for Smarter Business Conversations

1
Comments
2 min read
Breaking Through the Black Box: How AI Agents Conquer Shadow DOMs, Canvas Elements, and iFrames

Breaking Through the Black Box: How AI Agents Conquer Shadow DOMs, Canvas Elements, and iFrames

Comments 1
13 min read
Why your browser game loads to a black screen

Why your browser game loads to a black screen

2
Comments
11 min read
Scope of Variables in JavaScript

Scope of Variables in JavaScript

Comments 1
1 min read
Functions in JavaScript

Functions in JavaScript

Comments 1
2 min read
PostCSS Adopted Staged Publishing. 685M Weekly Downloads Now Gated.

PostCSS Adopted Staged Publishing. 685M Weekly Downloads Now Gated.

2
Comments 1
2 min read
DataBench

DataBench

1
Comments
1 min read
Conditional Statements in JavaScript

Conditional Statements in JavaScript

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