change title icon react code example

Example 1: change title react

import React from 'react'
import ReactDOM from 'react-dom'


class Doc extends React.Component{
  componentDidMount(){
    document.title = "dfsdfsdfsd"
  }

  render(){
    return(
      <b> test </b>
    )
  }
}

ReactDOM.render(
  <Doc />,
  document.getElementById('container')
);

Example 2: reactnaviataion change title

import * as React from 'react';
import { View, Text, Button } from 'react-native';
import { NavigationContainer } from '@react-navigation/native';
import { createStackNavigator } from '@react-navigation/stack';

function HomeScreen({ navigation }) {
  return (
    <View style={{ flex: 1, alignItems: 'center', justifyContent: 'center' }}>
      <Text>Home Screen</Text>
      <Button
        title="Go to Profile"
        onPress={() =>
          navigation.navigate('Profile', { name: 'Custom profile header' })
        }
      />
    </View>
  );
}

function ProfileScreen({ navigation }) {
  return (
    <View style={{ flex: 1, alignItems: 'center', justifyContent: 'center' }}>
      <Text>Profile screen</Text>
      <Button title="Go back" onPress={() => navigation.goBack()} />
    </View>
  );
}

const Stack = createStackNavigator();

function App() {
  return (
    <NavigationContainer>
      <Stack.Navigator>
        <Stack.Screen
          name="Home"
          component={HomeScreen}
          options={{ title: 'My home' }}
        />
        <Stack.Screen
          name="Profile"
          component={ProfileScreen}
          options={({ route }) => ({ title: route.params.name })}
        />
      </Stack.Navigator>
    </NavigationContainer>
  );
}

export default App;