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React Guides

Rendering Millions: Mastering List Virtualization with TanStack Virtual in React

·1568 words·8 mins
React Performance Web Development Frontend Architecture React-19 Tanstack-Virtual Performance Optimization Typescript Frontend
It’s 2025. Browsers are faster, JavaScript engines are marvels of engineering, and devices have more RAM than the servers we used a decade ago. Yet, one thing remains painfully consistent: if you try to shove 10,000 DOM nodes into a webpage at once, the browser will choke.

Exorcising Ghost Renders: Advanced Patterns for React Performance

·1800 words·9 mins
React Performance Web Development Best Practices React-19 Performance Optimization Profiling Hooks Rendering Javascript
It’s 3 AM. You’ve just shipped a feature. The logic is sound, the tests pass, but the UI feels… heavy. Input fields lag by a fraction of a second. Animations stutter on mobile devices. You check your network tab—it’s clean. You check your bundle size—it’s optimized.

State of React State: Redux Toolkit vs. Zustand vs. Signals

·1840 words·9 mins
React Architecture React State Management Redux-Toolkit Zustand Signals Performance Architecture
If you’ve been in the React ecosystem for more than a week, you’ve heard the argument. “Redux is dead,” they said in 2018. “Context is all you need,” they claimed in 2020. Yet, here we are. It’s 2026, and the battlefield of state management has shifted from “how do we pass data” to “how do we prevent re-renders.”

Mastering Concurrent Rendering: A Deep Dive into Transitions and Deferring

·1933 words·10 mins
React Advanced Performance Engineering Web Architecture React-19 Concurrency Performance Hooks Ux-Optimization Frontend Architecture
The era of “janky” user interfaces is officially over. In the landscape of 2025, users—and their high-refresh-rate displays—have zero tolerance for blocked main threads. If your dashboard stutters when a user types into a filter input, you aren’t just losing frames; you’re losing trust.

React 19 Deep Dive: Mastering the Compiler, Actions, and Advanced Hooks

·2096 words·10 mins
React Advanced Web Development Performance Engineering React-19 React-Compiler Server Actions Hooks Performance Frontend Architecture
If you’ve been writing React for the better part of a decade, you know the drill. You write a component, you realize a child is re-rendering unnecessarily, and you begrudgingly wrap a callback in useCallback or a calculation in useMemo. We’ve spent years micromanaging dependency arrays and fighting the “rules of hooks.”