React Router is a popular library for routing and navigation in React applications. It allows you to define routes and URLs for your application, and navigate between them using links or programmatic navigation. Here’s an example of how to use React Router to define routes and navigation in a simple application: jsx import React from … Read more
Custom hooks are functions in React that use one or more built-in hooks to encapsulate and reuse logic across multiple components. Custom hooks allow you to extract common patterns and behaviors from your components and share them across your application. Here’s an example of how to create a custom hook that fetches data from an … Read more
`useReducer` is a built-in hook in React that allows you to manage state using a reducer function. A reducer is a function that takes the current state and an action, and returns a new state based on the action. Here’s an example of how to use `useReducer` to manage a simple counter: jsx import React, … Read more
`useContext` is a built-in hook in React that allows you to consume a context in functional components. Context is a way to pass data down the component tree without having to manually pass props through every level of the tree. Here’s an example of how to use `useContext` to consume a context: jsx import React, … Read more
`useEffect` is another built-in hook in React that allows you to add side effects to functional components. Side effects are actions that are not directly related to rendering a component, such as fetching data from an API or subscribing to a WebSocket. Here’s an example of how to use `useEffect` to fetch data from an … Read more
`useState` is a built-in hook in React that allows you to add state to functional components. With `useState`, you can define state variables and update them using functions that React provides. Here’s an example of how to use `useState` to create a simple counter component: jsx import React, { useState } from “react”; function Counter() … Read more
Forms are a common way for users to input data in web applications, and React provides powerful tools for handling form data and events. To handle form data in React, you can use the `onChange` event to listen for changes to form fields and update the component’s state accordingly. Here’s an example of how to … Read more
In React, you can use arrays to render lists of items dynamically. When rendering lists, it’s important to use a unique key for each item in the list. Keys are used by React to identify which items have changed, been added, or been removed from the list. Here’s an example of how to render a … Read more
Conditional rendering is a common technique in React for displaying different content based on certain conditions. You can use conditional rendering to show or hide elements, render different components, or change the appearance of a component based on its state. One way to implement conditional rendering in React is by using the ternary operator. Here’s … Read more
React allows you to handle user events, such as mouse clicks and keyboard input, using event handlers. Event handlers are functions that get called when a specific event occurs on a component, like a button click or a form submission. Here’s an example of how to handle a button click event: jsx class Button extends … Read more