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React Native (JavaScript-based)

React Native is a framework developed by Meta (formerly Facebook) that allows you to build native mobile apps using your knowledge of JavaScript and React.

1. Philosophy of React Native​

Under the philosophy of "Learn once, write anywhere," it helps web frontend developers enter the mobile market without significant hurdles.

2. Native Component Bridge​

Unlike standard web HTML, React Native executes JavaScript code and calls actual Android/iOS native UI components through a "Bridge."

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

const HelloWorld = () => {
  return (
    <View style={styles.container}>
      <Text>Hello, React Native!</Text>
    </View>
  );
}

const styles = StyleSheet.create({
  container: { flex: 1, justifyContent: 'center', alignItems: 'center' }
});

3. Expo vs. CLI​

  • Expo: Handles complex native configurations on your behalf, making it ideal for beginners and fast prototyping.
  • React Native CLI: Used for large-scale projects that require direct control over native modules or complex optimizations.

4. Community and Ecosystem​

One of its greatest advantages is the massive community built over many years, which provides access to countless external libraries and examples.

This concludes our brief overview of the major languages and frameworks in mobile development!

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