Custom directives are a powerful feature in Angular that allows developers to extend HTML by creating reusable behaviors. Whether you’re styling elements dynamically or listening to DOM events, directives are essential for building scalable Angular apps. In this blog, we’ll explore: 📌 What are Directives in Angular? In Angular, a directive is a class with … Read more
Polyfills and utility functions are essential for mastering core JavaScript concepts and are frequently asked in technical interviews, especially for senior roles. This blog post offers a comprehensive overview of JavaScript polyfills and implementations of commonly asked utility functions—complete with code examples and detailed interview-style questions and answers. 🔍 What is a Polyfill? A polyfill … Read more
✍️ A Fun and Practical Guide | 15 April 2025 Applying for a Schengen visa can feel like navigating a maze—but don’t worry, we’ve got your back! 🧭 As Indian passport holders living in the UK on a Tier 2 visa, we recently applied for an Italian Schengen visa via VFS Global in London. 📅 … Read more
Performance optimization is crucial in JavaScript applications, especially when handling frequent user interactions like scrolling, resizing, or keypress events. Two powerful techniques used to limit function execution frequency are debouncing and throttling. In this blog, we’ll explain what debouncing and throttling are, provide detailed coding examples, and cover interview questions with answers related to these … Read more
Core Concepts Authentication Libraries Advanced Topics Testing and Debugging Detailed Answers
Promises have become a crucial part of JavaScript, enabling cleaner asynchronous code and reducing the notorious “callback hell.” Despite their importance, understanding how Promises work under the hood can be challenging. In this blog post, we’ll build a Promise polyfill to gain a deeper understanding of Promises and answer related interview questions that often arise … Read more
When building modern web applications with React, one of the most important architectural decisions revolves around how to render content. React offers three primary methods of rendering: Server-Side Rendering (SSR), Client-Side Rendering (CSR), and Static Site Generation (SSG). Each method has its advantages and trade-offs, depending on the use case and performance requirements. In this … Read more
As React applications grow in size and complexity, performance can degrade due to the increased size of the JavaScript bundle loaded by the browser. To address this, React provides efficient techniques like code splitting and lazy loading that help in optimizing the loading process. These tools reduce the initial load time by loading only the … Read more
In this blog, we will explore Higher-Order Components (HOCs) and how they can be used with modern React functional components. We will also evaluate if HOCs are still a good pattern in today’s React applications. What is a Higher-Order Component (HOC)? A Higher-Order Component (HOC) is a function that takes a component as input and … Read more
The useReducer hook is one of the advanced hooks in React that helps manage complex state logic in function components. It provides an alternative to the useState hook, especially when the state logic involves multiple sub-values or the state depends on previous values. In this blog, we will explore: What is the useReducer Hook in … Read more