react native get os

1import { Platform, StyleSheet } from 'react-native';
2
3const styles = StyleSheet.create({
4  height: Platform.OS === 'ios' ? 200 : 100
5});

1  const design = Platform.select({
2    android: {
3      header: true
4    },
5    ios: {
6	  header: false
7    },
8  });