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
React is widely known for its component-based architecture and state management. In simple React applications, passing state between components can be easily managed using props. However, as your application grows in complexity, managing state and passing it down through deeply nested components (called prop drilling) becomes cumbersome. To address this, React introduced the Context API, … Read more
React Hooks provide a more elegant way to manage state, handle side effects, and reuse logic in functional components. This guide walks you through all the core hooks in React, with detailed explanations and code examples, making it easy to understand their purpose and usage. What Are React Hooks? React Hooks are functions that let … Read more
React has revolutionized the way we build user interfaces by introducing the concept of the Virtual DOM and its powerful Reconciliation Algorithm. These two concepts form the backbone of React’s efficient rendering and updating of UI components. Understanding how the Virtual DOM works and how React updates the real DOM efficiently can help you write … Read more
React’s useEffect hook is one of the most powerful and frequently used hooks in functional components. It allows developers to manage side effects such as fetching data, manually updating the DOM, setting up subscriptions, or even timers. However, while it is essential, improper usage of useEffect can lead to performance issues, including unnecessary re-renders. In … Read more
JavaScript is a versatile language with a lot of depth, and understanding its more nuanced features can significantly impact your ability to write efficient and bug-free code. In this blog, we will dive deep into some crucial JavaScript concepts such as Symbols, variable scoping, deep object immutability, WeakMap and WeakSet, shallow vs. deep copies, and … Read more
