When working with React class components, one often encounters the super() and super(props) calls inside the constructor. These methods are crucial for initializing a class component and inheriting properties from React.Component base class. While they may look similar at first glance, they serve different purposes depending on how you intend to use props. In this article, we’ll explore the difference between super() and super(props) and help you understand when to use each. Introduction of super() and super(props) in React super(): The super() function is used to call the constructor of the parent class. In ... Read More

In this article, we are going to cover the implementation of dynamically showing or hiding elements in React. To understand this concept, you must be familiar with hooks in React. By leveraging hooks like useState, you can toggle and update the state to effectively control the visibility of an element. Approaches to Show or Hide Elements in React Using && Operator Using return null Using && Operator We have to change the state when a button is clicked, then it will determine the visibility of the element. With ... Read More

When you dive into the world of WordPress, you'll quickly encounter various terms and files essential for managing and optimizing your website. Among these, XML files play a crucial role, especially when it comes to data migration, backup, and SEO. But what exactly are WordPress XML files, and why should you care about them? Understanding XML Files XML, which stands for eXtensible Markup Language, is a versatile and self-descriptive language used to store and transport data. Unlike HTML, which focuses on displaying data, XML is all about carrying and structuring data in a way that's both human-readable and machine-readable. ... Read More

In JavaScript, sometimes we need some specific key-value pairs from an object. Suppose we have a large object and only want to select some specific keys. In this article, we will learn how to filter the keys of an object using Lodash. What is Lodash? Lodash is a popular JavaScript library that provides 200+ functions to facilitate web development. It provides helper functions like map, filter, and invoke as well as function binding, javascript templating, deep equality checks, creating indexes, and so on. Lodash can be used directly inside a browser and also with Node.js. Lodash Installation There are ... Read More

What are Environment Variables?Environment variables are essential for managing sensitive information, such as API keys or database credentials, in a secure and maintainable way. Environment variables are key-value pairs used to configure applications without hardcoding sensitive or environment-specific information into the codebase. They are especially useful for:Storing Sensitive Information: Protect API keys, tokens, and passwords from being exposed in the code.Environment-Specific Configuration: Configure values that vary between development, staging, and production environments.Improved Security: Keep sensitive data out of version control systems like Git.Why Use Environment Variables in Vercel?Vercel provides a simple and secure way to manage environment variables. It supports ... Read More

React is a powerful JavaScript library developed by Facebook for creating user interfaces specifically for single-page applications. The component-based architecture allows developers to create reusable UI components. This makes the development process efficient and maintainable. A typical React application is structured in directories and files. There are different file extensions used in React development, each with a particular purpose. For instance .js or .jsx files are for JavaScript and JSX code, respectively. On the other hand, .css files are for formatting elements. Knowing these file extensions is crucial for several reasons: improves code readability; helps fix bugs and ensures ... Read More

Many modern web apps require different themes, like light and dark modes, to enhance a user's experience. However, setting up and changing themes with Tailwind CSS can be confusing for developers. This article offers easy and effective methods to create and manage multiple themes with Tailwind CSS. Approaches to Create Multiple Themes Extending Tailwind Configuration for Themes Using CSS Variables Extending Tailwind Configuration for Themes You can make different themes in Tailwind CSS by changing the Tailwind configuration file (tailwind.config.js). This lets you set up your own ... Read More

Virtual DOM and Real DOM are important terms in web development. They both influence the rendering and updating of user interfaces. Virtual DOM is a transparent overlay that maximizes updates, whereas Real DOM is the underlying structure that the browser manipulates. To maintain optimal performance, web development frequently calls for effective ways to handle user interface (UI) modifications. Given their frequent changes and performance issues, traditional Document Object Models (DOMs) have been replaced by Virtual DOMs in contemporary frameworks. It is very important to understand the differences between Virtual DOM and Real DOM and how current frameworks achieve greater ... Read More

Tailwind CSS is a utility-first approach that provides predefined utility classes. Sometimes developers want to use CSS variables instead of predefined classes. This article will guide you in effectively using CSS variables in Tailwind CSS. What is CSS Variables? CSS variables are also known as custom properties, which are used to store values in CSS that you can reuse throughout your styles. CSS variables are defined using the --variable-name syntax. Syntax :element { --variable-name: value; } Setting Up CSS Variables To use CSS variables in Tailwind CSS, first ... Read More

Many developers struggle to create elements that fill the full height of the viewport, especially in responsive layouts, because they lack knowledge of using Tailwind CSS utilities. Tailwind CSS ensures responsiveness and user engagement by providing utility-first classes. What is viewport height? Viewport Height (vh) is a CSS unit that measures the height of the visible area of a web page in the browser window, excluding any scrollbars or toolbars. Approaches to fill viewport height We can fill the height of the viewport in Tailwind CSS using the following approaches: Using the h-screen class ... Read More