App.js

class App extends Component {
  constructor(props){
    super(props);

    this.state = {
      restaurants: initialRestaurants,
      sorting: initialSorting,
    }

    this.toggleFavourite = this.toggleFavourite.bind(this);
    this.sort = this.sort.bind(this);
    this.search = this.search.bind(this);
  }

  getRestaurants() {...}
  toggleFavourite(element) {...}
  sort(array, property, sorting) {...}
  search(term) {...}
  
  // return JSX
  render() {
    return(
      <Container>
        <SearchBar 
          search={this.search}
          sort={this.sort}
          sorting={this.sorting}/>
        <RestaurantList 
          restaurants={this.restaurants}
          toggleFavorite={this.toggleFavourite} />
      </Container>
    );
  }
}

export default App;