In-depth articles, tutorials, and guides on React — covering everything from fundamentals to advanced patterns.
Stale closures are one of the most common and confusing sources of bugs in React hooks. They occur when a function captures a variable at the time it was created and does not see later updates — resulting in logic that operates on outdated state or props.
React Suspense changes how loading states work. Instead of managing isLoading flags in every component, you declare where loading UI should appear with Suspense boundaries, and React takes care of showing fallbacks when any child is not ready to render.
React Server Components are the most significant change to the React component model since hooks. They run exclusively on the server, have zero bundle size contribution, and enable direct access to server resources — but they come with a new mental model that takes time to internalize.
React's concurrent rendering allows multiple render tasks to be in-flight simultaneously, prioritised by urgency. It's the feature that makes your app feel responsive even while doing expensive work — and it changes how you should think about React's rendering model.
React rewrote its core rendering engine in 2017 to introduce Fiber — an architecture that enables prioritised, interruptible, and resumable rendering. Here's what changed and why it matters for modern React features.
The virtual DOM is one of the most discussed ideas in frontend development, yet the actual algorithm behind it — and why it makes tradeoffs it does — is rarely explained clearly. Here is what actually happens when React diffs two trees.
Every time state or props change, React has to figure out what actually changed in the UI and update only those parts. The process behind this decision is called reconciliation — and understanding it will change how you write components.
Understand the differences between default and named imports in React, when to use each, and how to leverage React’s lazy function for code-splitting. This guide provides practical examples and tips for using React.lazy with named exports to optimize your React application’s performance.
JSX, short for JavaScript XML, is a syntax extension for JavaScript that resembles HTML. It is primarily used with React to describe what the UI should look like. By allowing developers to write HTML-like code within JavaScript, JSX provides a more intuitive and declarative way to construct user interfaces.
As a React developer, mastering modern JavaScript is essential for writing clean, efficient, and maintainable code. This article covers key JavaScript features that are particularly useful in the context of React development.