In CSS, every HTML element is considered as a rectangular box. The CSS Box Model is a fundamental concept that defines how these boxes are structured, how they occupy space, and how their dimensions are calculated. Understanding the box model is essential for layout, spacing, alignment, and designing responsive web pages. Components of the CSS…

Introduction When users visit a website, their experience is determined by how quickly the page becomes visible, usable, and stable. Traditional metrics like total page load time or server response time only measure technical performance, but they don’t reflect what the user sees and feels during loading. To address this, Google and other web performance…

Introduction In modern web applications, especially those built with React, the volume of data transmitted between the frontend and backend can significantly impact performance. To reduce the size of HTTP requests and responses, data compression can be applied. What is Data Compression? Data compression is the process of encoding information using fewer bits. It reduces…

What is Debouncing? Debouncing is a technique to control the rate at which a function is executed. It ensures that the function is triggered only after a specified amount of time has passed since the last event. This means if the event is triggered again within the wait time, the timer resets. It is especially…

React does not allow you to catch render-time errors inside functional components without using a class-based component. This is because: Only class components can implement componentDidCatch and getDerivedStateFromError, which are required to catch rendering errors in React. Why You Can’t Build a Purely Functional Error Boundary Today React’s error boundary mechanism is built around lifecycle…

What is React.FC? React.FC (or React.FunctionComponent) is a TypeScript type used to define functional components in React. It helps you add type safety to your props, making your components more predictable and easier to maintain. Basic Syntax Here: Advantages of React.FC Drawbacks of React.FC Alternative (Manual Function Typing) Instead of React.FC, you can also define…

1. Introduction In any real-world React application, you’ll likely need to make network requests to a backend server. Often, you want to intercept these requests and responses to: This is where interceptors come in. Interceptors are functions that sit between your application and the actual network call. They allow you to hook into Axios’s request/response…

1. Introduction For a Vite-based React application, loading different theme CSS files based on locale dynamically is a bit different than in Create React App, especially because Vite doesn’t automatically copy files from public/ unless explicitly referenced. Use dynamic import() to load CSS modules from src/ instead of relying on public folder. 2. Directory Structure…

1. What Are Push Notifications in Web Apps? Push notifications in web applications allow your site to send notifications to users, even when the browser is not open, as long as the service worker is active in the background. These are commonly used for: Push notifications rely on two main technologies: They also require a…

1. Introduction A Service Worker is a powerful feature in modern web development that enables your web applications to run in the background—even when the browser is closed—and to provide rich offline experiences, background syncing, and push notifications. It is an essential building block of Progressive Web Apps (PWAs). 2. What is a Service Worker?…