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State management in React: when Redux, Zustand, and Context API actually fit

Every React project hits the same fork around month two. Prop drilling gets old. Someone says "we need state management." The next two days are an opinion war. Redux because it's what we know. Zustand because someone read a blog post. Context because "isn't that built in?"The mistake isn't picking the wrong tool. It's not noticing that the three you're choosing between solve different problems. What each one actually isQuick mental models. Most of the confusion lives there.Context API is a

A GPU-Accelerated PDF Dark Mode Converter, That Runs Entirely in Your Browser

The ProblemOS dark mode doesn't affect PDF contentExisting tools upload your files, are slow, or have few options What I Built16+ themes, GPU-accelerated, fully offline, zero uploadsLink to live tool + screenshot How It Works (Technical)pdf.js rendering → Canvas API color transform → PDF assemblyParallel page processingText layer preservation techniqueImage detection and preservation Try It / ContributeLive link https://bratuka.dev/pdf-dark-mode-converter/GitHub link https

Vite Cold Start White Screen? A Plugin Shows Resource Loading on Page

TL;DRWhite screen✅ A plugin show progressvite-plugin-white-screen-progress Background and MotivationIn daily Vue app development, as the project become more and more complex and the number of components grows, the white screen time of the Vite dev server gradually lengthens, especially during the first load.Usually, we need to open Chrome DevTools and go to the Nework tab to see the loading progress. But some times, we don't want to open DevTools.Is there a way to show the loading pr

Understanding the `this` Keyword in JavaScript

The most confusing word in JavaScript — explained by asking one simple question.If there's one concept that made me stare at my screen in genuine confusion, it's this. Not because the idea is complicated, but because this changes its meaning depending on where and how you use it. The same keyword can refer to completely different things in different situations.I'd write this.name inside a function and get undefined. Then I'd write the exact same thing inside an object method and get the correct

The release checks I want before I trust a JavaScript repo in 2026

Originally published at https://tateprograms.com/release-readiness-2026.html.A lot of repos look finished right before they are published.The README has a screenshot. The package builds locally. The demo runs once. The launch post is drafted.That is usually the riskiest moment, because the parts that fail in public are rarely the parts that looked exciting while building. They are the boring edges: install instructions, CI, package metadata, secret handling, publish workflows, screenshots, old c

Revolutionizing Web Puzzle Games: The Architecture Behind 'LOOP' (05/10 04:05)

In the world of web-based puzzle games, 'LOOP' stands as a groundbreaking innovation that redefines the potential of JavaScript and Canvas technologies. This game is not just a technical marvel but a philosophical experience that challenges players to think beyond conventional boundaries.At the heart of 'LOOP' lies an architecture that leverages Three.js to its fullest potential. Three.js, a JavaScript library that uses WebGL to create and display animated 3D computer graphics in a web browser,

JavaScript Modules: Import and Export Explained

How to break your code into organized, reusable pieces — and why it changes everything.Here's what my first JavaScript project looked like: one file, 500 lines, everything jammed together. Helper functions at the top, API calls in the middle, DOM manipulation at the bottom, and a dozen global variables floating around connecting it all.It worked. But the moment I needed to change something, I was scrolling up and down for ten minutes trying to find where that one function was. And when I acciden

Hello World! 🇳🇵 Greetings from Nepal!

Namaste! 🙏My name is Dipesh Kushwaha, and I am a developer from Nepal. I am very excited to finally join the dev.to community and share my journey with you all!What I do 🛠️I love building things that work on the web and on mobile phones. My current "toolkit" includes:🎭Web: HTML, CSS, JavaScript, and PHP.🎭Mobile: Flutter, Kotlin, and Java.What I am learning now 🐍Right now, I am spending my time learning Python. I want to use it to build smarter backends and automate my work.Why I am hereI joined

Map and Set in JavaScript

Two data structures that solve problems objects and arrays can't — and when you should reach for them.For a while, I thought JavaScript only had two ways to store data: objects (key-value pairs) and arrays (ordered lists). They handle most situations, so I never questioned whether there was something better.Then I ran into two problems that made me realize their limitations:Problem 1: I needed an object where the keys were other objects, not just strings. Regular objects can't do that — every ke

String Polyfills and Common Interview Methods in JavaScript

Understanding how string methods work under the hood — and building them yourself.Here's something that changed how I think about JavaScript: anyone can use .trim() or .includes(). You call the method, it works, you move on. But can you build it from scratch? Can you explain what happens inside when you call .split() or .repeat()?That's exactly what interviewers want to know. Not whether you've memorized the API, but whether you understand the logic behind it. And the best way to prove that? Wri

Gemini API File Search is now multimodal

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Show HN: Building a web server in assembly to give my life (a lack of) meaning

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Two weeks of building Bible School LMS in public: first contributor, bilingual content, real production bug

Two weeks ago I posted "Open Source Bible School LMS, we need your help" and asked for contributors.Today the first community PR landed. Plus a stack of changes shipped that I think are worth sharing, both because some of them are genuinely interesting, and because it gives a concrete picture of where help would land.Repo: github.com/ArVaViT/biblie-school (MIT, looking for stars and PRs)Live: biblie-school-frontend.vercel.app The first community PRKushal picked up a good first issue (

🚀 React + Vite + Tailwind CSS + Shadcn UI Setup (vanillaJS)

A complete step-by-step guide to quickly set up **React + Vite + Tailwind CSS + Shadcn UI* with clean @/... alias imports — no TypeScript required!*⏱️ Time to complete: ~10 minutes🎯 Result: Production-ready React app with beautiful, accessible components 🧩 Step 1: Create a Vite + React ProjectScaffold your new project with Vite:npm create vite@latest my-appcd my-appWhen prompted, select:Option | Choice Framework | React Variant | JavaScript ✅ Vite will generate a lean, fast React starter

Preventing unnecessary re-renders using React.memo, useMemo and useCallback hooks

Preventing unnecessary re-renders in React is crucial for maintaining performance, especially in complex component trees. Here is a comprehensive summary of the key concepts, focusing on React.memo and related hooks. The Problem with Re-rendersWhen a parent component re-renders, its children automatically re-render as well. In large-scale applications, this default behavior can create noticeable performance bottlenecks.There are four primary reasons why a component will re-render itself, al

Skeleton Screens vs Spinners: Perceived Load Time

Related: Core Web Vitals and Lighthouse Explained covers how Google measures performance in the field, including how perceived performance metrics like INP differ from load metrics.Two pages load in exactly the same amount of time. One shows a spinner. The other shows a skeleton screen. Users consistently rate the skeleton screen page as faster, even when it is not. This is not a quirk or a fluke. LinkedIn documented it, researchers replicated it, and it has a straightforward neurological explan

React Hook Form vs. TanStack Form vs. Formisch: React Form Libraries Compared

I work on Formisch, so I'm obviously biased. We published this comparison on our blog last month and I'm posting it here for feedback. I tried to keep it fair, there are several cases where I straight-up say "stay with RHF."TanStack Form has been gaining serious traction as an alternative to React Hook Form, especially for teams building complex, type-safe forms. The natural question is whether switching is worth the effort, or if you should just look at something like Formisch instead.I'm not g

I built a 20 kB React hook that doesn't care which AI you use — here's how streaming actually works

`---Most React AI chat libraries are secretly backend libraries.They stream directly from OpenAI, or through their own cloud, or via a framework-specific server adapter. The React hook is just a thin client on top of one particular provider. Switch from Claude to GPT-4? Rewrite the frontend. Migrate off Vercel? Rewrite the frontend. Add Groq for a faster path? Rewrite the frontend.But here's the thing: streaming AI chat is fundamentally just three events:data: {"type":"text","text":"Hello"}

Optimize the performance of GraphQL and React Server Components: What Matters

A single unoptimized GraphQL resolver can inflate your p99 latency by 2,400%. In a production audit of 47 GraphQL APIs across fintech, e-commerce, and SaaS platforms, we found that three root causes—unbatched data-loader calls, unbounded list queries, and synchronous server-render waterfalls—accounted for 83% of observed performance regressions. This article shows you exactly how to fix them, with real code, real benchmarks, and numbers you can take to your next architecture review. 🔴 Live

# How to Build a Multi-Step Form Wizard in Next.js with TypeScript

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