View Categories

React Native

Reading Time: 1 min read

Description #

React Native is an open-source framework developed by Facebook for building native mobile apps using JavaScript and React. It allows developers to write mobile applications that run on both iOS and Android with a single codebase while delivering native performance.

History #

React Native was released in 2015 as a way to leverage React’s declarative UI model for mobile app development. It evolved from Facebook’s internal hackathons and projects and quickly gained popularity due to its efficiency and cross-platform capabilities.

Hello World Code #

import React from 'react';
import { Text, View } from 'react-native';

export default function App() {
  return (
    <View style={{ flex: 1, justifyContent: 'center', alignItems: 'center' }}>
      <Text>Hello, World!</Text>
    </View>
  );
}

How to Run #

Option 1: Online
Try React Native in Expo Snack.

Option 2: Local

  • Install Node.js and npm
  • Install Expo CLI:
bashCopynpm install -g expo-cli
  • Create a new project and run:
expo init HelloWorld  
cd HelloWorld  
expo start

Key Concepts #

  • Uses JavaScript and React paradigm for UI
  • Cross-platform: iOS and Android support
  • Provides native components for better performance
  • Supports hot reload for fast development
  • Access to device APIs via native modules
  • Large ecosystem and third-party libraries
  • Integration with Expo for simplified workflows
  • Modular architecture with reusable components
  • Supports navigation, gestures, and animations
  • Strong community and corporate support

Try It Online #

Expo Snack

Fun Facts #

  • React Native powers popular apps like Facebook, Instagram, and Discord.
  • It bridges JavaScript and native code for seamless user experiences.
  • The framework encourages code reuse and rapid prototyping.
  • Expo simplifies building and deploying React Native apps without native toolchains.
  • React Native supports building apps with fully native UI components rather than webviews.

Resources #

Updated on June 9, 2025

What are your Feelings

  • Happy
  • Normal
  • Sad
Scroll to Top