class HomeScreen extends React.Component {  render() {    return (              Home Screen         {            this.props.navigation.navigate('Details', {              itemId: 86,              otherParam: 'anything you want here',            });          }}        />          );  }}
class DetailsScreen extends React.Component {  render() {    const { navigation } = this.props;    return (              Details Screen                  itemId: {JSON.stringify(navigation.getParam('itemId', 'NO-ID'))}                          otherParam:          {JSON.stringify(navigation.getParam('otherParam', 'default value'))}                            navigation.push('Details', {              itemId: Math.floor(Math.random() * 100),            })          }        />          );  }}