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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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Marcelo C.

Sep 7

My restored Cypress session was lying to me

#automation #debugging #javascript #testing

5 min read

AMAL

Sep 8

Web Vitals in JavaScript: How to Measure, Debug, and Fix Real-World Performance Problems

#javascript #webdev #performance #frontend

12 min read

Sep 8

Svelte Snippets: Reuse Markup Without a New Component

#svelte #javascript #typescript

3 min read

AsyncMonk

Sep 12

Page count is the wrong unit for estimating a PDF-to-text job

#webdev #javascript

5 min read

Dev Encyclopedia

Sep 12

You Don't Need Express to Build a Microservice (Here's the Zero-Dependency Version)

#node #microservices #javascript #backend

2 min read

Sourav Dey

Sep 8

LeetCode #1710: Maximum Units on a Truck

#algorithms #javascript

2 min read

MRZHU

Sep 8

Building fair higher-or-lower clues for a daily football guessing game

#javascript

2 min read

BeanBean

Sep 7

Bắt LLM trả JSON đúng chuẩn: ba lớp và vòng repair

#fullstack #ai #webdev #javascript

4 min read

Artificial Wasteland

Sep 7

A reader asked what a 250 MiB file costs a browser tab. The JS heap said 2.4 MiB and was off by 500.

#javascript #webdev #performance #testing

8 min read

Sep 30

Building High-Performance Web Calculators with React & Prerendering for Max SEO

#react #webdev #seo #javascript

3 min read

Includes video and contributor perks

Oct 3

EmbedCatalog is participating in Hacktoberfest 2026

#webdev #javascript #programming #opensource

2 min read

Sep 8

Build a local call-review panel with Python

#python #tutorial #webdev #javascript

6 min read

Sep 7

We checked every single-typo of the 30 most popular npm and PyPI packages. Here's what's actually registered.

#javascript #python #security #opensource

5 min read

Jason T.

Sep 30

Hitting a file-size window with canvas.toBlob: fitting passport photos into 54–240 KB

#javascript #webdev #tutorial #images

4 min read

Auth0 DevRel for Auth0 for Developers

Sep 21

Add Auth0 to Your Hono App in Just 5 Lines of Code

#authentication #javascript #security #webdev

1 min read

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