Potta Vijay Kumar

Source : https://github.com/pottavijay/realtime-communication-app In today’s world of dynamic and interactive applications, real-time communication between the client and server is essential. Whether you're building a chat app, live dashboard, or stock ticker, how you deliver data matters — a lot. Three popular strategies dominate the landscape: Polling Server-Sent Events (SSE) WebSockets But how do you decide which one to use? Let’s explore each, compare them, and see where they fit best! 1. Polling What is Polling? Polling is the simplest method: the client sends HTTP requests at regular intervals asking, "Any updates?" Pros: Simple to implement Works everywhere (great browser support) No persistent connection needed Cons: High server load (lots of redundant requests) Latency between updates Inefficient for truly real-time apps Use When: Data updates are infrequent Real-time experience ...

  In today’s hyper-connected world, users expect real-time interactions—whether it's chatting with support, receiving stock updates, or tracking delivery in motion. Traditional HTTP was never built for this level of immediacy. Enter WebSockets —the game-changer for real-time, two-way communication between clients and servers. What are WebSockets? WebSockets are a protocol that enables persistent, full-duplex communication between the client and the server over a single TCP connection. Unlike HTTP, which is request-response based, WebSockets allow data to flow freely both ways without repeatedly opening new connections. How WebSockets Work Handshake : It starts with an HTTP request to initiate the WebSocket connection. Upgrade : If the server accepts, the protocol switches from HTTP to WebSocket. Persistent Connection : Once established, both the client and server can send data at any time. WebSockets vs. HTTP Polling Use Cases of WebSockets...

Design patterns in UI/UX are tried-and-tested solutions to common usability problems in interface design. Whether you’re building a landing page, a dashboard, or a mobile app, knowing these patterns can help you create intuitive, user-centered experiences. Here are key UI/UX design patterns that every front-end developer should understand and implement: Navigation Patterns Top Navigation Bar Commonly used for global sections (e.g., Home, About, Services). Sidebar Navigation Useful in dashboards and applications with nested sections. Breadcrumbs Ideal for showing users their path within complex hierarchies. Purpose: Helps users understand where they are and move around confidently. Form Design Patterns Floating Labels Keeps the placeholder visible even after input starts. Progressive Disclosure Shows only essential form fields first, revealing more as needed. Inline Validation Immediately notifies users of errors or confirmations. Purpose: Improves data accura...

Web Components are a powerful set of technologies that allow developers to create reusable, encapsulated custom elements. As the front-end ecosystem grows more complex with frameworks like React, Angular, and Vue, Web Components offer a framework-agnostic way to build UI components that work anywhere.   What Are Web Components? Web Components are a collection of standardized browser APIs that enable developers to build custom, reusable HTML elements with encapsulated functionality. They are made up of four main technologies: Custom Elements – Define your own HTML tags with custom behavior. Shadow DOM – Encapsulate the internal structure of a component, preventing style and behavior leaks. HTML Templates – Define reusable HTML chunks that are not rendered until explicitly used. ES Modules – Package and import JavaScript code in a modular way.   Why Web Components Matter Framework Agnostic : They can be used with any framework—or...

Modern web applications are more powerful than ever—but with power comes complexity and performance bottlenecks. While JavaScript has been the dominant language of the web for decades, it has its limits, especially for performance-intensive tasks like video editing, 3D rendering, and gaming. Enter WebAssembly (WASM) — a game-changing technology that brings near-native performance to web applications. In this post, we’ll explore what WASM is, why it matters, and how it’s transforming front-end development. What is WebAssembly? WebAssembly is a low-level binary instruction format designed to run code at near-native speed in modern web browsers. It acts as a compilation target for languages like C, C++, Rust, and Go, allowing you to bring non-JavaScript code to the browser securely and efficiently. // Unlike JavaScript, you don’t write WebAssembly directly. // But here’s how you load a WASM module in JavaScript: fetch('example.wasm')   .then(response => respo...

Progressive Web Apps (PWAs) combine the best of web and mobile apps to deliver fast, reliable, and engaging user experiences. As the web evolves, PWAs have emerged as a powerful solution for developers looking to build cross-platform apps that work seamlessly across devices. In this blog, we’ll break down how PWAs work , their core features, and why they matter in today’s digital ecosystem. What is a PWA? A Progressive Web App is a type of web application that uses modern web capabilities to deliver an app-like experience to users. It’s accessible via a browser but can also be installed on a user’s device, like a native app. Core Features of a PWA Responsive Design Works across all devices—mobile, tablet, and desktop. Connectivity Independence Uses Service Workers to enable offline functionality and background sync. App-Like Interface Feels like a native app with smooth interactions and immersive UI. Installable Can be added to the home screen without going through app stores. P...