📝 Latest Javascript Articles on Dev.to

Stop Losing Promise Errors. unhandledrejection Catches Them.

A rejected promise with no .catch doesn't crash and doesn't show up in your error tracker — it just disappears. The unhandledrejection event is the global safety net most apps never wire up....

• ✍️ Author: Parsa Jiravand
• 👍 Reactions: 1 | 💬 Comments: 1
• 📅 Published on: 10/8/2026
• 🏷 Tags: javascript, webdev, programming, debugging

Video Depth Estimation in the Browser: Building with WebGPU and Depth Anything V2

An ordinary video records color and motion, but it does not explicitly tell an editor which pixels......

• ✍️ Author: MartinDelophy
• 👍 Reactions: 1 | 💬 Comments: 0
• 📅 Published on: 10/8/2026
• 🏷 Tags: webdev, opensource, ai, javascript

Building Thesis Desk: a free, zero-dependency web app to organize a PhD dissertation

🔗 Live app: https://ahmedawe2026-svg.github.io/DBA-Research-Dissertation-Assistant/ 💻 Source code......

• ✍️ Author: ahmedawe2026-svg
• 👍 Reactions: 0 | 💬 Comments: 0
• 📅 Published on: 10/8/2026
• 🏷 Tags: opensource, webdev, javascript, productivity

I built a Chrome side panel for my messy tabs (with an octopus that judges me)

I always have too many tabs open. Chrome's tab strip turns into a row of tiny icons and I can't tell......

• ✍️ Author: uekichi
• 👍 Reactions: 0 | 💬 Comments: 0
• 📅 Published on: 10/8/2026
• 🏷 Tags: javascript, productivity, showdev, webdev

Humming to MIDI in the Browser with Basic Pitch and Web Workers

You can turn a short hummed recording into MIDI in the browser with Spotify's Basic Pitch. Decode the......

• ✍️ Author: lucas white
• 👍 Reactions: 0 | 💬 Comments: 2
• 📅 Published on: 10/8/2026
• 🏷 Tags: javascript, webdev, machinelearning, tutorial

How we built free video tools that never upload your file

Disclosure: I build GrabCast, the site used as the example here. This post is about the engineering,......

• ✍️ Author: GrabCast
• 👍 Reactions: 0 | 💬 Comments: 0
• 📅 Published on: 10/8/2026
• 🏷 Tags: webassembly, javascript, privacy, webdev

The State Is in the DOM: Taking a Vanilla JavaScript App to React

There's no framework to leave behind in a vanilla JavaScript app. What you do have is state hiding all over the page, and finding it is most of the job....

• ✍️ Author: Emmanuel R
• 👍 Reactions: 0 | 💬 Comments: 0
• 📅 Published on: 10/8/2026
• 🏷 Tags: react, javascript, webdev, refactoring

Hijri dates in JavaScript - what Intl can do, what it can't, and four traps

Saudi Arabia's official Hijri calendar is Umm al-Qura, and dates like "1 Ramadan 1448" show up in......

• ✍️ Author: Kirnu (كرنو)
• 👍 Reactions: 2 | 💬 Comments: 1
• 📅 Published on: 10/8/2026
• 🏷 Tags: javascript, typescript, i18n, webdev

Hiding an image in a PNG and decoding it with SVG filters, without CORS pixel access

I wanted to see whether a browser could reveal an image hidden in another image even when the carrier......

• ✍️ Author: Keishin Senzaki
• 👍 Reactions: 0 | 💬 Comments: 0
• 📅 Published on: 10/8/2026
• 🏷 Tags: showdev, webdev, javascript, css

I Tried to Build an AI Agent That Applies to Jobs for Me. The AI Was the Easy Part.

I have been learning Agentic AI for a while now. Concepts made sense, the demos worked, and I felt......

• ✍️ Author: yash jindal
• 👍 Reactions: 1 | 💬 Comments: 0
• 📅 Published on: 10/8/2026
• 🏷 Tags: discuss, ai, node, javascript

Most JSONPath Testers Hide the One Thing You Need

Run $..price in most online JSONPath testers and you get this: [8.95, 12.99, 8.99, 22.99,......

• ✍️ Author: Format stack
• 👍 Reactions: 1 | 💬 Comments: 0
• 📅 Published on: 10/8/2026
• 🏷 Tags: webdev, javascript, showdev, programming

Grade the Missing Sticky Store: A Feature-Flag Review Take-Home

A hiring panel should treat a green diff from a short-context assistant as incomplete evidence,......

• ✍️ Author: Riley Zhu
• 👍 Reactions: 0 | 💬 Comments: 0
• 📅 Published on: 10/8/2026
• 🏷 Tags: career, testing, javascript, ai

بنيتُ «مكتب الرسالة»: تطبيق ويب مجاني وبلا أي مكتبات لتنظيم رسالة الدكتوراه

🔗 التطبيق الحيّ: https://ahmedawe2026-svg.github.io/DBA-Research-Dissertation-Assistant/ 💻 الكود......

• ✍️ Author: ahmedawe2026-svg
• 👍 Reactions: 0 | 💬 Comments: 0
• 📅 Published on: 10/8/2026
• 🏷 Tags: opensource, webdev, javascript, productivity

Building for Europe: What nobody tells you about GDPR, AdSense, and multilingual Next.js SEO

## The Problem Nobody Talks About Building a web product for European users isn't just translating......

• ✍️ Author: Ovrion
• 👍 Reactions: 0 | 💬 Comments: 0
• 📅 Published on: 10/8/2026
• 🏷 Tags: nextjs, webdev, seo, javascript

Ordering, Receipts and Reconnects: The Chat Client Problems That Only Appear on a Bad Network

Ordering, Receipts and Reconnects: The Chat Client Problems That Only Appear on a Bad......

• ✍️ Author: Vishal Singh
• 👍 Reactions: 0 | 💬 Comments: 0
• 📅 Published on: 10/8/2026
• 🏷 Tags: webdev, javascript, architecture, mobile

Module Federation with Vite in production: what changes

Module Federation on Vite works, but dev and build behave differently. Where that gap shows up in production, and what to check before it does....

• ✍️ Author: MFEOrchestrator
• 👍 Reactions: 0 | 💬 Comments: 0
• 📅 Published on: 10/8/2026
• 🏷 Tags: microfrontends, vite, webdev, javascript

Classic Snake and Tank Wars!

I wanted a couple of small games for my portfolio that anyone could play in ten seconds, so I rebuilt......

• ✍️ Author: Bryan Hamilton
• 👍 Reactions: 0 | 💬 Comments: 0
• 📅 Published on: 10/8/2026
• 🏷 Tags: gamedev, html, javascript, showdev

Detecting open passwords and permission locks in PDFs with pdf.js

A PDF that opens without asking for anything can still be encrypted. I ran into this while thinking......

• ✍️ Author: hao jia
• 👍 Reactions: 0 | 💬 Comments: 0
• 📅 Published on: 10/8/2026
• 🏷 Tags: webdev, javascript

A category filter should not reset an edited textarea

Imagine a page with two generated messages. You edit one, switch the category selector to hide it,......

• ✍️ Author: Rowan Hale
• 👍 Reactions: 0 | 💬 Comments: 0
• 📅 Published on: 10/8/2026
• 🏷 Tags: javascript, html, webdev

How I made any keyboard play a little tune, with no audio files

I wanted typing to feel nice. Not a click track, but something closer to playing an instrument. So I......

• ✍️ Author: Prakash S
• 👍 Reactions: 0 | 💬 Comments: 0
• 📅 Published on: 10/8/2026
• 🏷 Tags: javascript, webdev, showdev, tutorial

Why two tracking pages disagree about the same parcel (and what it means for your integration)

Two tracking pages, one parcel, two different answers. A customer emails you a screenshot of a......

• ✍️ Author: 24hTrack
• 👍 Reactions: 0 | 💬 Comments: 0
• 📅 Published on: 10/8/2026
• 🏷 Tags: ecommerce, api, webdev, javascript

ImageBackground and SafeAreaView are deprecated: 183 of 653 React Native apps still use them

React Native 0.87 deprecated ImageBackground, DrawerLayoutAndroid and UTFSequence. SafeAreaView was......

• ✍️ Author: alican akyol
• 👍 Reactions: 0 | 💬 Comments: 0
• 📅 Published on: 10/8/2026
• 🏷 Tags: javascript, mobile, opensource, reactnative

The quirk of null...Null

In English, null means nothing, but in JavaScript, that nothing can become a headache. Let's......

• ✍️ Author: Arman Eousuf
• 👍 Reactions: 0 | 💬 Comments: 0
• 📅 Published on: 10/8/2026
• 🏷 Tags: javascript, frontend, webdev, programming

I built a budget app with no backend — everything lives in localStorage

Every budgeting app I tried wanted a monthly subscription. Which is a bit ironic for software whose......

• ✍️ Author: cyl08
• 👍 Reactions: 0 | 💬 Comments: 0
• 📅 Published on: 10/8/2026
• 🏷 Tags: webdev, productivity, javascript, showdev

Node.js Event Emitter Explained: Events, Listeners and Best Practices

Node.js is built around an event-driven architecture, and the EventEmitter class is one of the core......

• ✍️ Author: Ansh Sheladiya
• 👍 Reactions: 0 | 💬 Comments: 0
• 📅 Published on: 10/8/2026
• 🏷 Tags: javascript, node, events, backend

I used GitHub as the backend for a shared photo album

Our trip photos always ended up scattered across group chats and different cloud accounts. I didn't......

• ✍️ Author: arya
• 👍 Reactions: 0 | 💬 Comments: 0
• 📅 Published on: 10/8/2026
• 🏷 Tags: javascript, github, webdev, showdev

From Architecture to Deployment: My Journey as a Student Full-Stack Builder

I am a student developer focused on building functional, production-ready full-stack applications.......

• ✍️ Author: Vivek
• 👍 Reactions: 0 | 💬 Comments: 0
• 📅 Published on: 10/8/2026
• 🏷 Tags: webdev, javascript, react, programming

A pixel-ratio governor for Three.js that doesn't trust 60 fps

My WebGL scene looked soft on phones because it rendered at 1 pixel per point. Raising it blindly would choke weak GPUs, so the scene tries each step and keeps it only if the phone holds its own best ...

• ✍️ Author: Jonás Javier Encarnación
• 👍 Reactions: 0 | 💬 Comments: 0
• 📅 Published on: 10/8/2026
• 🏷 Tags: threejs, webgl, performance, javascript

Regor's New Website Is Live and Built with PureStack

I've just launched the new website for Regor, my open-source TypeScript reactive UI library. Explore......

• ✍️ Author: PureStack Studio
• 👍 Reactions: 0 | 💬 Comments: 0
• 📅 Published on: 10/8/2026
• 🏷 Tags: typescript, opensource, webdev, javascript

Splitting a dinner bill by who ate what, with the whole bill in the URL

A table of three splits a $96 dinner equally. One of them skipped the cocktails and still pays $32.......

• ✍️ Author: Arthur031221
• 👍 Reactions: 0 | 💬 Comments: 0
• 📅 Published on: 10/8/2026
• 🏷 Tags: javascript, webdev, opensource, tutorial