Answers for "react native get OS"

react native check os

import { Platform, StyleSheet } from 'react-native';

const styles = StyleSheet.create({
  height: Platform.OS === 'ios' ? 200 : 100
});

react native get OS

const design = Platform.select({
    android: {
      header: true
    },
    ios: {
	  header: false
    },
  });