react/shells/dev/app/ReactNativeWeb/index.js

// @flow

import React, { Fragment, useState } from 'react';
import { Button, Text, View } from 'react-native-web';

export default function ReactNativeWeb() {
  const [backgroundColor, setBackgroundColor] = useState('blue');
  const toggleColor = () =>
    setBackgroundColor(backgroundColor === 'purple' ? 'green' : 'purple');
  return (
    <Fragment>
      <h1>ReactNativeWeb</h1>
      <View>
        <Text>auto (default) - english LTR</Text>
        <Text>
          {
            '\u0623\u062D\u0628 \u0627\u0644\u0644\u063A\u0629 \u0627\u0644\u0639\u0631\u0628\u064A\u0629 auto (default) - arabic RTL'
          }
        </Text>
        <Text style={{ textAlign: 'left' }}>
          left left left left left left left left left left left left left left
          left
        </Text>
        <Button
          onPress={toggleColor}
          style={{ backgroundColor }}
          title={`Switch background color to "${
            backgroundColor === 'purple' ? 'green' : 'purple'
          }"`}
        />
      </View>
    </Fragment>
  );
}