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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!

Client-side, server-side, it doesn't matter. This tag should be used for anything JavaScript focused. If the topic is about a JavaScript framework or library, just remember to include the framework's tag as well.

How should the tag be written? All lower-case letters for the tag: javascript.

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Nov 5

AI crawlers don't run your JavaScript

#ai #seo #rendering #javascript

4 min read

Harriet McCafferty

Nov 5

Building a Reliable Length-to-Width Calculator with Vanilla JavaScript

#frontend #javascript #tutorial #webdev

5 min read

Yuva

Nov 5

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

#webdev #javascript #tools #programming

2 min read

Nov 5

Building a PDF toolbox that never uploads your files: pdf-lib, vanilla JS, and zero backend

#javascript #webdev #opensource #pdf

3 min read

Nov 5

Securing a Static JavaScript AI Application with Cognito, OAuth 2.0, PKCE and API Gateway JWT Authorization

#authentication #aws #javascript #security

12 min read

Nov 5

Merge and deduplicate scraped datasets across runs (JS + Python)

#javascript #python #datascience #tutorial

11 min read

Narasimma Radhakrishnan

Nov 5

What is UseNavigate and Browser Router in react?

#frontend #javascript #react #tutorial

1 min read

David

Nov 5

The hard part of undo is deciding what counts as a change

#javascript #webdev #ux

5 min read

Nov 5

Architecting a Zero-PII 2026 US Real Estate & Retirement Tax Engine: NYS IT-2663, PA REV-1500, NUA & IRS Rule 72(t) SEPP

#javascript #opensource #fintech #webdev

4 min read

Nov 5

401 Unauthorized with a valid JWT? Five causes I check first

#javascript #node #webdev #security

2 min read

earn2exist

Nov 5

Your AI reply arrived. It no longer belongs in the editor.

#javascript #testing #ai #webdev

2 min read

Nov 5

fetch() doesn't throw on a 404

#api #beginners #javascript

1 min read

Nov 6

I Tested 18 Online PDF and Image Tools: 12 Uploaded My File

#privacy #webdev #javascript #security

3 min read

AsyncMonk

Nov 5

OCR said done and returned half the page, so count lines before trusting it

#webdev #javascript

4 min read

Nov 5

React Hooks Explained: useState and useEffect with Simple Examples

#react #javascript #webdev #beginners

6 min read

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