Introduction In this chapter, we will explore the useId hook in React. This hook generates unique IDs that can be used for accessibility purposes, such as associating form inputs with their labels. It ensures that the IDs are unique across the entire application, even when components are rendered multiple times. We will create a new …
Introduction In this chapter, we will explore how to create custom hooks in React. Custom hooks allow you to encapsulate reusable logic and stateful behavior in a function that can be shared across multiple components. This can help you write cleaner and more maintainable code. We will create a new React project from scratch, explain …
Introduction In this chapter, we will explore the useMemo hook in React. This hook allows you to memoize expensive calculations and return a memoized value, preventing unnecessary recalculations on every render. This can improve performance by optimizing how and when these calculations are performed. We will create a new React project from scratch, explain the …
Introduction In this chapter, we will explore the useCallback hook in React. This hook allows you to memoize functions, preventing them from being re-created on every render. This can improve performance by reducing unnecessary re-renders of child components that rely on the functions as props. We will create a new React project from scratch, explain …
Introduction In this chapter, we will explore the useReducer hook in React. This hook is an alternative to useState for managing complex state logic in functional components. It provides a way to handle state transitions in a predictable manner using a reducer function. We will create a new React project from scratch, explain the syntax …
Introduction In this chapter, we will explore the useRef hook in React. This hook allows you to create a mutable object that persists across renders. useRef is primarily used to access DOM elements directly and store mutable values that do not cause re-renders when updated. We will create a new React project from scratch, explain …
Introduction In this chapter, we will explore the useContext hook in React. This hook allows you to access context values in functional components, providing a simple way to manage global state. We will create a new React project from scratch, explain the syntax of useContext, and walk through a real-time project step by step to …
Introduction In this chapter, we will explore the useEffect hook in React. This hook allows you to perform side effects in functional components, such as fetching data, directly interacting with the DOM, and setting up subscriptions or timers. We will create a new React project from scratch, explain the syntax of useEffect, and walk through …
Introduction In this chapter, we will explore the useState hook in React. This hook allows you to add state to functional components. We will create a new React project from scratch, explain the syntax of useState, and walk through a real-time project step by step to demonstrate its usage. Our project will be an Employee …
Introduction In this chapter, we will explore React Hooks, a feature that allows you to use state and other React features in functional components. Hooks were introduced in React 16.8 to provide a way to use state and lifecycle methods without writing class components. We will cover the most commonly used hooks, such as useState, …
Introduction In this chapter, we will explore how to integrate Bootstrap 5 into a React application. Bootstrap is a popular CSS framework that helps in designing responsive and modern web applications. We will create a new React project from scratch, install Bootstrap, and use it to style a simple form, table, and a Todo app. …
Introduction In this chapter, we will explore React Router, a powerful library for handling routing in React applications. React Router allows you to create single-page applications with navigation and dynamic content. We will use the latest version of React Router to demonstrate how to set up routing in a simple website. Table of Contents Setting …
Introduction In this chapter, we will explore React Context, a powerful feature that allows you to share data across your component tree without passing props down manually at every level. React Context is useful for managing global state, such as user authentication, theme settings, and application settings.
Introduction In this chapter, we will explore React Fragments, a feature that allows you to group multiple elements without adding extra nodes to the DOM. This is useful for returning multiple elements from a component without wrapping them in a parent element. We will cover how to use fragments in both class components and functional …
Introduction In this chapter, we will explore how to implement form validation in React. Form validation is crucial for ensuring that user inputs meet certain criteria before being submitted. We will cover both class components and functional components, demonstrating how to validate form fields and display error messages.
Introduction In this chapter, we will explore how to work with forms in React using functional components and hooks. Forms are essential for collecting user input and handling it in a controlled manner. We will cover the basics of form handling, focusing on key form controls like input, checkbox, radio, and select elements. We will …
Introduction In this chapter, we will explore how to work with forms in React. Forms are essential for collecting user input and handling it in a controlled manner. We will cover the basics of form handling, focusing on key form controls like input, checkbox, radio, and select elements. We will start with examples using class …
Introduction In this chapter, we will explore the lifecycle of React components. Understanding the component lifecycle is crucial for managing side effects, performing actions at specific points in a component’s existence, and optimizing performance. We will cover the different phases of the component lifecycle, lifecycle methods in class components, and hooks for managing lifecycle in …
Introduction In this chapter, we will explore various methods for styling React components using CSS. Styling is a crucial part of web development as it enhances the visual appeal and usability of a web application. We will cover different techniques, including inline styles, CSS classes, CSS modules, and styled-components.
Introduction In this chapter, we will explore how to render lists in React. List rendering is a common requirement in web development when you need to display a collection of items, such as a list of users, products, or messages. React provides a straightforward way to render lists dynamically based on data. We will cover …
Introduction In this chapter, we will explore how to implement conditional rendering in React. Conditional rendering allows you to render different components or elements based on certain conditions. This is essential for creating dynamic and interactive UIs. We will cover various techniques for conditional rendering, including if statements, ternary operators, logical && operators, and switch-case …
Introduction Handling events with React elements is very similar to handling events on DOM elements. However, there are a few differences. React events are named using camelCase, and we write React event handlers inside curly braces. In React (JSX), rather than passing a string, we pass a function as the event handler. This chapter will …
Introduction In this chapter, we will explore how to use destructuring in React to simplify and clean up the code when working with props and state. Destructuring allows us to extract values from objects or arrays and assign them to variables in a single statement. This can make the code more readable and easier to …
Introduction In this chapter, we will explore React state, a key concept for managing data within components. We will understand what state is, how to create and update state in class components, and what hooks are. We will also explain each example in simple terms. The state is a built-in object in React class components. …
Introduction In this chapter, we will explore React props, which are a fundamental concept in React for passing data from parent components to child components. We will understand what props are, how to use them, and their key features.