Updates in Next.js 16.3: AI-Native Development, Better Security, and Instant Navigation
The Next.js team continues to push the boundaries of modern web development with the Next.js 16.3 Preview . While previous releases focused on perform…
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What More Than Three Decades of Acrobat JavaScript Development Taught Me About Interactive PDF Forms
Interactive PDF forms are often treated as little more than electronic versions of paper documents. A user enters information, selects a few checkboxe…
Testing a Two-Chart Compatibility Engine Without Inventing Missing Data
A compatibility engine can be deterministic and still be dishonest. The obvious failure is a wrong calculation. The subtler failure is unjustified cer…
Why Cloudflare Acquired Astro And What It Tells You About Where the Web Is Going
Cloudflare is a network infrastructure company. They run DNS, DDoS protection, and CDN services for millions of websites. They are not, historically, …
Building A Personal Metrics Dashboard With Vanilla JS And CSS Grid
Why I Wanted A Stupidly Simple Dashboard I like metrics. Steps, sleep, HRV, code sessions, pitches thrown at practice, deep work blocks. If I do not s…
1,756 hand drawn icons, and nobody drew them
For a while my routine on side projects was this: find one sketchy icon somewhere, download the SVG, rename it, drop it in assets , then fix its strok…
JavaScript vs React: What's the Difference?
JavaScript vs React: Understanding How They Work Together If you're starting web development, you've probably heard about JavaScript and React. Many b…
Building a Browser-Based Sentence Counter with Local-First Text Processing
Many text utilities are simple enough to run entirely in the browser. A sentence counter is a good example. The browser already has everything it need…
Why regex match highlighting breaks on nested capture groups (I found out the hard way building a tester)
I write enough regex that I got tired of bouncing between the browser console and random online testers just to check whether a pattern actually match…
Rino.js 3, Building Modern Websites Without a Frontend Framework
Modern web development has become incredibly powerful. But also increasingly complicated. Many projects begin by installing hundreds of megabytes of d…
It Was Just a Patch Update. What Could Possibly Go Wrong?
This is a submission for DEV's Summer Bug Smash: Smash Stories powered by Sentry . You know those version numbers in libraries and frameworks, right? …
Home Cantina: A Modern Glassmorphism Comfort Food Landing Page
This is a submission for Frontend Challenge - Comfort Food Edition, Perfect Landing What I Built For this challenge, I created "Cantina de Casa", a la…
Claude Fable 5 vs GPT-4o for TypeScript Codegen
Which model actually writes better TypeScript, and does it matter enough to change what you reach for? I ran Claude Fable 5 and GPT-4o through the sam…
Rock paper scissors is secretly a distributed systems problem
Back in 2023 I built an online rock paper scissors game so my friends and I could settle arguments remotely. Open a room, send the link, best of three…
How I built an Ad-Free Anime Dashboard using the AniList API
Hello everyone! 👋 As a web development student, I wanted to build a portfolio project that solves a real problem I face: annoying pop-up ads on stream…
Stop Faking Your Mock APIs: Introducing Playground API 🚀
If you’ve ever built a frontend prototype, mobile app, or design demo, you’ve likely run into this common headache: You connect your app to a mock RES…
Building Form-Associated Custom Elements with ElementInternals
Web components have been able to fully participate in native HTML forms since 2023 — submit their value with FormData , trigger :invalid , reset along…
Stop Fighting Your Router: Full URL Parsing in React with Zero Dependencies
How many times have you installed a massive routing framework just to parse a query parameter or generate a breadcrumb trail? In lightweight React app…
Building a Real-Time Word Counter in JavaScript
Why Build One? Whether you are building a modern CMS, an in-browser markdown editor, or a custom blogging platform, real-time text analysis is a funda…
Multithreading in Node.js: A Complete Guide with Theory and Practical Examples
When developers first learn Node.js, they often hear the phrase: "Node.js is single-threaded." While this statement is technically true, it is also in…
A Disabled Button Is Not Delivery: Build a Receipt-Based React Support Form
A user writes a detailed bug report, presses Send , and sees a disabled button. Then the request takes longer than expected. Did the report arrive? Sh…
Engineering Reliable Pagination for Public TikTok Data
TikTok's public web endpoints do not always return the page size an application requests. One route may return a small native window, another may unde…
Industrial Heater Sizing Calculator with JavaScript
How to Build an Industrial Electric Heater Sizing Calculator with JavaScript Selecting the correct power for an industrial electric heater is not alwa…
Beyond APIs: The Architecture of Autonomous "Computer Use" Agents in TypeScript
The architecture of modern artificial intelligence has reached a critical inflection point. For years, Large Language Models (LLMs) operated as isolat…
Чат на сайте стоит дороже, чем кажется: как я замерил его цену и переписал виджет под результат
Полгода назад я закрывал технический долг по производительности на клиентском проекте. Обычная история: интернет‑магазин, мобильный Performa…
React Performance Optimization Techniques That Actually Work
Performance optimization in React is often surrounded by myths. Developers routinely wrap every single component in React.memo , wrap every function i…
Building a Modern CRM Dashboard with React, Tailwind CSS, and Recharts
Building a modern Customer Relationship Management (CRM) platform requires more than just displaying raw database records. Users expect interactive an…
[Dev Log][Node.js] Feedly Classic is gone, so I built my own FeedFlow (Part 1)
Introduction: Since Feedly's redesign, I haven't been able to get used to the interface. I especially miss the high-density, single-column, no-nonsens…
React useDropZone Hook: Build a File Drop Zone (2026)
React useDropZone Hook: Build a File Drop Zone (2026) Drag a file over a drop zone that has any child element inside it — an icon, a label, a preview …
Building Custom MCP Clients in Next.js & Serverless Engines: The Ultimate Engineering Guide
The Model Context Protocol (MCP) has transformed how AI agents interact with local tools, filesystems, and databases. Originally built around a determ…