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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 1

Four ways to pick a date locale in one app, and only the newest one asks the data

#javascript #webdev #i18n #nextjs

5 min read

김기선

Nov 1

Building reversible layer masks in a browser image editor

#webdev #javascript #opensource

3 min read

Yan Wang

Nov 1

Parse a page selection completely or not at all

#javascript #testing

3 min read

Nov 1

FDA % Daily Value rounding isn't Math.round(): implementing 21 CFR 101.9 in JavaScript

#javascript #webdev #programming #tutorial

3 min read

Nov 1

Why our game pages have no login wall, and what that costs us in analytics

#webdev #javascript #performance #indiedev

2 min read

Nov 5

I built Quasnooze, a local-by-default personal AI assistant in plain Node.js 22 with zero runtime dependencies

#ai #javascript #node #opensource

2 min read

Abdulbasit Mansha

Nov 1

Building an In-Browser 478-Point Facial Landmark & Symmetry Analyzer (Zero Cloud Uploads)

#ai #webdev #javascript #privacy

1 min read

kandz

Nov 1

How to Replace Values in a JSON Array (Without Breaking It)

#javascript #json #webdev #programming

2 min read

Yuva

Nov 1

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

#webdev #javascript #tools #programming

2 min read

Hao Zhang

Nov 1

Six parsing changes that made invoice extraction trustworthy

#javascript #webdev #productivity #opensource

4 min read

jsmanifest

Nov 1

Next.js Prefetching in App Router: How `<Link>` Partial Prefetch Works and Why Your Pages Still Feel Slow

#react #nextjs #webdev #javascript

16 min read

Nov 1

strlen Says 4, .length Says 2: PHP Byte Strings vs TypeScript UTF-16 for One Emoji

#typescript #php #javascript #webdev

8 min read

StudentCalcTools

Nov 1

JSON-LD Schema for Calculator Pages

#javascript #seo #webdev #tutorial

5 min read

Maha Mohammed Alawi Alsaqaf

Nov 1

Your test data is lying to you: realistic addresses, phones and check digits for 40 countries

#webdev #javascript #testing #i18n

5 min read

MenaChange

Nov 5

An allowlist checks the address. These $126M in withdrawals all went to approved ones.

#security #blockchain #javascript #cryptocurrency

4 min read

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