How to print console log in reactnative Android?

Question

I am using below code to print console log in react native, but i am getting error cannot find variable v:

import React, 
{
AppRegistry,
Component,
StyleSheet,
Text,
View,

} from 'react-native';
var ConsolePanel = require('react-native-console-panel').displayWhenDev();


class RanD extends Component {
render() {
return (
    <View style={styles.container}>

          <Text>
          Hit me!
          </Text>

          <View>
          {ConsolePanel}
          </View>
    </View>
  );
  }
 }

how to resolve this error??

Answer 1

Remove this line:

var ConsolePanel = require('react-native-console-panel').displayWhenDev();

And also remove:

{ConsolePanel}

To log something to the console in React Native, simply do this:

console.log('Hi from React Native');

To see the console output, if you're on Mac OS or Linux, run this in a terminal window:

$ adb logcat | grep ReactNativeJS

If you're on Windows, see this StackOverflow question: How to easily view and filter Android's logcat in Windows?

Reading the logs is also documented in the Getting Started guide.

UPDATE: You can now run react-native log-ios or react-native log-android to see the logs in the console.