The MERN stack (MongoDB, Express, React, Node.js) is popular for fast development and MVPs. But when traffic, data volume, and team size grow, MERN often starts showing real scalability limitations. This article explains why MERN scales poorly in real-world, production-grade systems. 1. Node.js Is Single-Threaded by Design Node.js uses a single-threaded event loop. While it … Read more
JavaScript execution context defines how and where code is evaluated and executed. Every time JavaScript runs a script, a function, or a block, it creates an execution context to manage variables, scope, and this binding. Types of Execution Context JavaScript has three main execution contexts: 1. Global Execution Context (GEC) Example: Here, x and test() … Read more
This guide is based on real production experience. No theory. Only changes that actually improve load time, Core Web Vitals, and crawl efficiency. CSS Optimization JavaScript Optimization jQuery Handling Image Optimization Font Optimization Lazy Loading Strategy Network Optimization Caching Strategy Static Cache Policy Server & Backend Optimization Content & DOM Optimization Script Control What Actually … Read more
Closures are one of the most important and most misunderstood concepts in JavaScript. If you work with callbacks, event handlers, React hooks, or async code, you are already using closures—whether you realize it or not. This article explains closures from the ground up, with real-world examples, performance notes, and common pitfalls. Closure Definition (In Simple … Read more
CSS entities are not a standalone CSS feature, but they play a critical role in how CSS handles special characters, symbols, and reserved characters when styles interact with HTML and text content. Misunderstanding entities often leads to broken layouts, invalid CSS, or rendering issues—especially in pseudo-elements, content properties, and embedded styles. This guide explains CSS … Read more
Event bubbling is a core concept in JavaScript’s event model. It describes how events propagate through the DOM hierarchy after they are triggered on an element. In simple terms: when an event happens on a child element, it automatically travels upward to its parent elements, one by one, until it reaches the document root. This … Read more
Automation is no longer limited to developers. For digital publishers, automation in web development reduces manual work, minimizes publishing errors, and speeds up content delivery. From deployment to performance optimization, automation now runs quietly behind most modern publishing platforms. What Automation Means for Publishers In practical terms, automation means systems handling repetitive tasks without human … Read more
Overriding CSS styles is a core front-end skill. It becomes critical when working with third-party libraries, legacy code, CMS themes, or auto-generated styles. This guide explains every reliable way to override CSS, why some methods fail, and which approach is technically correct in real production environments. 1. How CSS Decides Which Style Wins CSS works … Read more
The show more / show less pattern is widely used to control long content blocks without overwhelming users. While this is often implemented using JavaScript, modern CSS alone can handle most real‑world cases efficiently, with better performance and fewer moving parts. This article covers pure CSS techniques, accessibility notes, limitations, and production‑ready patterns. Why Prefer … Read more
Get ready, developers. A seismic shift has hit the React world. It’s not a new hook or a fancy framework—it’s the React Compiler. This tool isn’t just an update; it’s a total redefinition of how we build performant apps. For years, we’ve been stuck in a manual labor loop. We spent half our time asking: … Read more