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Recent posts tagged javascript

Description for Tag: "javascript"

A programming language for building dynamic and interactive web content.
Level UI • 20 hours • in Articles • 9 min read
An MCP server is not a new API. It is a thin layer over the one you already have
Somewhere in the last year, "do we need an MCP server?" joined the list of questions that arrive in a brief before anyone has said what the thing is for. It is usually framed as MCP vs API, as though the Model Context Protocol were a newer kind of AP...
post-cover-33074
  • ai
  • api
  • webdev
  • security
7 Reactions 7 Comments
Anas Sheikh • 3 hours • in Articles • 4 min read
Your Tests Are Green and Prove Nothing: 4 Signs You're Testing the Mock
Coverage says 94%. Every test is green. You deploy on Friday afternoon, and by Monday a customer has found a bug in the exact function you "tested". When you open the test, the reason is obvious in hindsight. The test never ran your code. It ran a f...
  • javascript
  • testing
  • typescript
  • webdev
0 Reactions 0 Comments
Paul Browne • 16 hours • in Articles • 9 min read
Building a static blog with Sitelo, one function per page
In my last post on DEVhttps://dev.to/paulbrowne/javascript-in-html-out-building-a-simpler-static-site-generator-5ln I explained why I built Sitelo: most websites are documents, and documents shouldn't need a JavaScript application to reach the browse...
post-cover-33109
  • javascript
  • nodejs
  • framework
  • frontend
7 Reactions 1 Comments
Anas Sheikh • 20 hours • in Articles • 4 min read
Your Next.js redirect() Silently Does Nothing Because It's Inside a try/catch
A user fills in your form and clicks "Create post". The post is saved in the database. And the page shows "Could not create post". They try again. Now there are two posts. Nothing is wrong with your database. Your error handling caught something it...
  • nextjs
  • javascript
  • webdev-learning
  • reactjs
2 Reactions 4 Comments
Aprajita singh • 1 day • in Articles • 2 min read
Building Shiori GLOBAL: How We Created an AI-Powered Circular Learning Network for Students
Hey CoderLegion community! 👋 Millions of educational books sit unused on shelves after a student completes a academic year, while millions of other students struggle to afford high-quality learning resources. To solve this, I built Shiori GLOBAL 🌿—...
post-cover-33022
  • ai
  • javascript
  • webdev
  • developer-story
6 Reactions 1 Comments
nitroide • 1 day • in Articles • 2 min read
JSON-LD Recipes: BlogPosting, FAQPage, and SoftwareApplication Without a Plugin
Two weeks ago I wrote the overview: a static indie site needs three machine-readable files — sitemap, schema, and llms.txt. That post told you what each one is for. This one is the part I left out on purpose: the actual code. I run NitroIDE, a browse...
post-cover-32967
  • webdev
  • seo
  • javascript
  • opensource
2 Reactions 2 Comments
Anas Sheikh • 1 day • in Articles • 4 min read
Stop Syncing State With useEffect: 4 Bugs That Disappear When You Delete the Effect
Here is a pattern I see in almost every React codebase I read: const fullName, setFullName = useState''; useEffect => { setFullNamefirstName + ' ' + lastName; }, firstName, lastName; It works. It also renders twice every time a name changes, sh...
  • javascript
  • react
  • typescript
  • webdevelopment
0 Reactions 0 Comments
saurav_tb_pandey • 1 day • in Articles • 3 min read
Mastering the Native Drag and Drop API in React
What is the Drag and Drop API? The Drag and Drop API is a built-in browser capability that allows web applications to make elements on a webpage interactive through dragging and dropping. Instead of forcing users to click buttons or select items fr...
  • draganddrop
  • javascript
  • react
  • webdev
0 Reactions 0 Comments
Joemetry • 1 day • in Articles • 1 min read
Use Native structuredClone() Instead of JSON.parse(JSON.stringify())
Deep cloning objects in JS used to require third-party libraries like Lodash or hacky JSON serialization that dropped Date objects, Map, Set, and RegExp. JavaScript const original = { user: "Joseph", joined: new Date, roles: new Set"admin", "d...
post-cover-30741
  • javascript
  • webdev
  • frontend
  • productivity
0 Reactions 0 Comments
Figsh • 2 days • in Discussions • 5 min read
Build an AI Ops Dashboard with FSCSS modules (ai-ui, st-core, circle-progress, overlapui)
forumDiscussion group2 participants post-cover-32863
  • fscss
  • tutorial
  • javascript
  • coderlegion
4 Reactions 2 Comments
Tom Smithverified • 16 hours • in Articles • 9 min read
Developer Weekly Briefing — October 30, 2026
Security dominated this week, but not in the usual way. Two active campaigns turned GitHub configuration files into attack surfaces. Researchers demonstrated that the built-in browsers inside AI coding tools can read your SSH keys. And at Oracle AI ...
post-cover-33104
  • agenticai
  • devsecops
  • github
  • localai
6 Reactions 3 Comments
saurav_tb_pandey • 2 days • in Articles • 3 min read
Demystifying the Facade Pattern in Node.js: Clean APIs Made Simple
What Is the Facade Pattern? The facade pattern is a structural software design pattern that provides an uncomplicated, unified interface in front of a complex collection of classes, libraries, or APIs. Instead of forcing your application code to in...
  • facadepattern
  • nodejs
  • javascript
  • softwareengineering
0 Reactions 0 Comments
ShawnSun • 3 days • in Articles • 2 min read
Launching a fancy text converter: 451 styles, and the Unicode edge cases behind them
I'm Shawn Sun, a front-end engineer, and I just put a fancy text converter online. This is a developer community, so here are the parts that were fun to build instead of a feature list. !The converter's home page: one text box, category chips, and a...
  • unicode
  • javascript
  • webdev
  • showdev
4 Reactions 2 Comments
Oamien • 3 days • in Articles • 9 min read
Building a Booking System with Node.js, Google Calendar, and Google Meet
Introduction Booking a consultation should be straightforward for the person making the appointment. Behind the scenes, however, an automated booking system has to coordinate several moving parts: collecting customer information, checking availabi...
post-cover-32649
  • backend
  • javascript
  • node
  • tutorial
7 Reactions 4 Comments
mockbandapp • 4 days • in Articles • 6 min read
Designing browser music controls around the next beat
By Paul Gendek. Originally published on DEVhttps://dev.to/paulgendek/designing-browser-music-controls-around-the-next-beat-29f6. The original DEV article is labelled “Fully Autonomous”; its AI disclosure is retained below. When I am playing guitar a...
  • webdev
  • javascript
  • ux
4 Reactions 2 Comments
brylexpl • 4 days • in Articles • 4 min read
I built a game that teaches Vim motions: what I got wrong about teaching a modal editor
Most developers I know have the same relationship with Vim: they learned just enough to exit it, and never went further. I wanted to fix that, so I built Vimrealmhttps://vimrealm.com?ref=coderlegion: a browser RPG where you type real Vim commands to ...
post-cover-31862
  • vim
  • javascript
  • webdev
  • gamedev
3 Reactions 2 Comments
rishabdugar • 5 days • in Articles • 6 min read
The architecture of a website that can't see your files (74 tools, no backend)
!Fizzdoc Home Edit & Createhttps://dev-to-uploads.s3.us-east-2.amazonaws.com/uploads/articles/319bto3g9dfv5s24arrw.png Most "free online PDF tool" sites have the same architecture: your file goes up to their server, gets processed, and comes back. ...
post-cover-32457
  • architecture
  • systemdesign
  • javascript
  • open-source
2 Reactions 1 Comments
chrischase011 • 5 days • in Articles • 4 min read
Headless Vue + WordPress Boilerplate v2.0.0
Headless Vue + WordPress Boilerplate v2.0.0 Yes, Version 2.0.0 is here!!! This boilerplate allows you to use Vue as the front-end for your WordPress theme in a headless architecture. WordPress handles the backend and REST API, while Vue powers the...
  • frontend
  • javascript
  • vue
  • wordpress
0 Reactions 0 Comments
yanwang • 5 days • in Articles • 7 min read
Fine in Chrome, broken in Preview: two PDFKit gotchas for anyone who writes PDFs
This article was originally published on Hashnode: Fine in Chrome, broken in Previewhttps://wangyan.hashnode.dev/fine-in-chrome-broken-in-preview-two-pdfkit-gotchas-for-anyone-who-writes-pdfs. It is republished here with light edits. > Disclosure: ...
  • pdf
  • javascript
  • swift
  • macos
4 Reactions 2 Comments
Figsh • 5 days • in Articles • 5 min read
devtemDesign: one config object paints a whole landing page
> A zero-dependency page engine in plain HTML, CSS and JS. 7 templates, live theming, pricing, FAQ, stats and a mobile drawer from a single config. Full reference included Every landing page I built started the same way: nav, hero, feature cards, pr...
post-cover-32379
  • webdev
  • fscss
  • javascript
  • opensource
0 Reactions 0 Comments
Anas Sheikh • 6 days • in Articles • 4 min read
"'use client' Doesn't Turn Your Whole App Into a Client Component (The Children Trick Nobody Explain
You need a theme provider, so you create a file, add 'use client' at the top, and wrap your app in it. Then a nagging thought arrives: "I just wrapped my entire layout in a client component. Did I turn the whole app into client-side React?" Most de...
  • nextjs
  • javascript
  • reactjs
  • webdevelopment
0 Reactions 3 Comments
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