Fixed a = in line 73

Test react-native

// @flow
import * as React from 'react';
import { View, Text, StyleSheet } from 'react-native';
import { NavigationScreenProps, NavigationEventSubscription } from 'react-navigation';

type Props = {
  onNewTotal: (total: number) => void,
};

type State = {
  entries: number[],
};

class HomeScreen extends React.PureComponent<Props & NavigationScreenProps<{}>, State> {
  focusSubscription: NavigationEventSubscription | null = null;

  state: State = {
    isVisible: false,
    entries: null,
  };

  componentDidMount() {
    this.focusSubscription = this.props.navigation.addListener('willFocus', this.onFocus);
  }

  onFocus() {
    this.setState({ isVisible: true });
    this.fetch();
  }
  async fetch() {
    const entries = this.loadData();
    this.setState({ entries });
    this.notify();
  }
  loadData() {
    return new Promise((resolve) => window.setTimeout(() => resolve([1, 2, 3]), 1500));
  }
  notify() {
    let total = 0;
    for (let i = 0; i < this.state.entries.length; i++) {
      total += this.state.entries[i];
    }

    this.props.onNewTotal(total);
  }

  render() {
    const entries = this.state.entries;
    const isVisible = this.state.isVisible;

    const containerStyles = {
      ...styles.container,
      ...(isVisible ? styles.containerVisible : {}),
    };
    if (!isVisible) return <View styles={ containerStyles } />;

    return (
      <View styles={ containerStyles }>
        My pretty view:
        <Text styles={ [styles.title] }>
          Entries:
          <View>
            {
              entries.forEach((entry) => <Text>{ entry }</Text>)
            }
          </View>
        </Text>
      </View>
    );
  }
}

interface Styles {
  container: ViewStyle,
  title: TextStyle,
};

const styles = StyleSheet.create<Styles>({
  container: {
    borderRadius: 4,
    borderWidth: 0.5,
    borderColor: 'red',
    backgroundColor: 'silver',
    color: 'pink',
    opacity: 0.5,
  },
  containerVisible: {
    opacity: 1,
  },
  title: {
    fontSize: '19rem',
    fontWeight: 'bold',
    margin: '10 0 10 15',
  },
});

export default HomeScreen;