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^\d[A-Z]\d{16}$|^\d{14,15}$|^9[2-4]\d{2}( ?\d{4}){4} ?\d{2}$

rapPayne

import React, { Component } from 'react';      // <-- 1
import { Button, Image, SafeAreaView, ScrollView, Text, View } from 'react-native';
import { store } from './store/store';        // <-- 2
import { DatePicker } from './DatePicker';      // <-- 3
import { FilmBrief } from './FilmBrief';        // <-- 3
import { FilmDetails } from './FilmDetails';    // <-- 3
import { ShowingTimes } from './ShowingTimes';  // <-- 3

export class Landing extends Component {  // <-- 4
  constructor(props) {                    // <-- 5

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import 'package:flutter/material.dart';  // <-- 1
import 'package:flutter_redux/flutter_redux.dart';
import 'package:redux/redux.dart';  // <-- 2
import 'store/Actions.dart';        // <-- 2
import 'store/AppState.dart';       // <-- 2
import 'FilmBrief.dart';    // <-- 3
import 'FilmDetails.dart';  // <-- 3
import 'DatePicker.dart';   // <-- 3
import 'ShowingTimes.dart'; // <-- 3

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render() {
  const {showings,films,selected_date,selected_film,showFilmDetails}= {...this.state}; // <-- 9
  return (
    <SafeAreaView> // <-- 10
      <ScrollView>  // <-- 11
        <View>                          // <-- 12
          <View style={styles.header}>  // <-- 12
            <Image source={require(`./assets/daam.png`)} style={styles.logo} />  // <-- 13, 14
            <Title>Dinner And A Movie</Title>
          </View>

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@override
Widget build(BuildContext context) {
  return StoreProvider<AppState>(
    store: this.store,
    child: StoreConnector<AppState, AppState>(converter: (store) {
      return store.state;
    }, 
    builder: (context, callback) {
      if (store.state.showFilmDetails)                         // <-- 9
        return showFilmDetails(this.store.state.selectedFilm); // <-- 9

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void myCallback(Foo theIncomingData) {
 doSomethingWith(theIncomingData);
}

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Bar someFunction() {
  Foo theIncomingData = someFunction();
  return new Bar();
}

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Future<Bar> someFunction() async {
  Foo theIncomingData = await somethingThatReturnsAFuture();
  return new Bar();
}

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Type of future	When it's ready, I'll have a ...
Future<String>	... string
Future<Foo>	... Foo
Future>	... Map whose keys are Strings and whose values are dynamic.

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class FooState extends State<FooComponent> {
  String _firstName;  // <-- A variable known by the whole class
  Widget build(BuildContext context) {
    // return a widget
  }
  void _myCallback(String someVar) {
    _firstName = someVar;  // <-- Getting a value OUT of an async callback
  }
}