React Development Guide | Components, Hooks & State…

Building Modern User Interfaces with Components and Hooks

React is a JavaScript library for building user interfaces, particularly web applications. Developed by Facebook,

React uses a component-based architecture where UIs are built from reusable, composable components. React introduces

React is a JavaScript library for building user interfaces, developed

architecture where UIs are built from reusable components. React uses a virtual DOM for efficient updates, JSX

for declarative syntax, and hooks for state management. It's the most popular frontend library, used by companies

live demo · related simulation● LIVE

JSX (JavaScript XML) is a syntax extension that lets you write HTML-li

but makes React code more readable. JSX is transpiled to React.createElement() calls. You can embed JavaScript

expressions in JSX using curly braces, and JSX prevents injection attacks by escaping values.

Frequently asked questions

What is React used for?

React is primarily used for building user interfaces (UIs) for web applications. It's a powerful tool for creating dynamic and interactive experiences, particularly single-page applications.

Can I use React for both iOS and Android development?

While you can use React Native to build mobile apps for iOS and Android, the underlying technologies and components differ significantly. React Native uses native UI elements, whereas standard React focuses on web browsers.

How can I share code between a website and a mobile app?

You can share business logic between your web application and your mobile app using techniques like server-side rendering or by creating reusable components that can be adapted for different platforms. However, the UI components themselves will likely need to be tailored to each platform.

What is Redux and when should I use it?

Redux is a predictable state container for JavaScript apps. You should use Redux when your application has a complex, global state that needs to be managed efficiently and consistently across different components.

▶ Try it live

Everything above runs in your browser — open Hash Function Avalanche Visualizer and change the parameters while it is running. Nothing is installed, nothing is uploaded, the whole model lives in one tab.

▶ Open Hash Function Avalanche Visualizer simulation

React Development Guide | Components, Hooks & State Management

Building Modern User Interfaces with Components and Hooks

React is a JavaScript library for building user interfaces, developed

JSX (JavaScript XML) is a syntax extension that lets you write HTML-li

Frequently asked questions

▶ Try it live

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