Handling Events
In React, you can handle user events like clicks and input changes using event handlers. Event handlers are functions that are called when a specific event occurs.
This code snippet demonstrates event handling in React using an ‘onClick‘ attribute that references the ‘handleClick’ function, triggering an alert when the button is clicked.
Example: This example shows the use of handling events.
import React from 'react';
function Button() {
function handleClick() {
alert('Button clicked!');
}
return <button onClick={handleClick}>Click Me</button>;
}
export default Button;
Getting Started with React
ReactJS, often referred to as React, is a popular JavaScript library developed by Facebook for building user interfaces. It emphasizes a component-based architecture, where UIs are built using reusable components. React uses a declarative syntax to describe how UIs should look based on their state, simplifying development and enhancing code readability.
React also utilizes a virtual DOM to optimize rendering performance by minimizing actual DOM manipulations. React’s unidirectional data flow and rich ecosystem of libraries and tools have made it a go-to choice for frontend development, especially in building single-page applications (SPAs).
Table of Content
- Why ReactJS ?
- Setting Up Your Development Environment
- Understanding React Components
- Creating Your First React Component
- JSX (JavaScript XML)
- Working with Props and State
- Handling Events:
- Conditional Rendering
- Lists and Keys
- Styling React Components
- Introduction to React Hooks
- Building a Simple React Application
- Component Lifecycle
- React Router
- Managing State with Context API