Potta Vijay Kumar

In the evolving world of frontend development, how your app renders content can significantly impact performance, SEO, and user experience . Two popular rendering techniques are Server-Side Rendering (SSR) and Client-Side Rendering (CSR) . Let’s break down the differences, pros, and cons of each—and help you decide which approach suits your needs. What is Server-Side Rendering (SSR)? With SSR , the server renders the full HTML of a page and sends it to the client. The browser receives a fully formed HTML document, which gets displayed quickly. Example: // SSR with Next.js export async function getServerSideProps() {   const data = await fetchData();   return { props: { data } }; } Advantages: Faster initial page load Great for SEO Content is available before JavaScript loads Disadvantages: Slower subsequent page navigation More server load Complex to cache dynamically generated pages What is Client-Side Rendering (CSR)? In C...

Understanding the Virtual DOM and React Reconciliation React’s efficiency in rendering UI updates is largely thanks to its Virtual DOM and a process called Reconciliation . Whether you're a frontend developer aiming to deepen your understanding or a future solution architect looking to master optimization techniques, this post is for you. What is the Virtual DOM? The Virtual DOM (VDOM) is a lightweight, in-memory representation of the actual DOM. React creates this virtual structure to manage and update UI changes more efficiently. How it works: When you update the UI, React creates a new Virtual DOM. It compares this new VDOM with the previous one (called diffing ). Only the parts that changed are updated in the real DOM. Why it's efficient: Direct DOM manipulation is costly in terms of performance. The Virtual DOM allows React to minimize actual changes, leading to faster rendering and smoother UI. What is Reconciliation? Recon...