Modifying table view data source methods

As you learned in Chapter 14, Getting Started with MVC and Table Views, you can use UITableViewDataSource methods to determine how many table view rows to display, and what to put in each row.

In the previous section, you added a new property, filteredTableData, to hold an array of JournalEntry instances that match the search text. You’ll modify the updateSearchResults(for:) method to populate filteredTableData with JournalEntry instances that match the search text, and you’ll modify the UITableViewDataSource methods to display the contents of filteredTableData on the Journal List screen while the search bar is active. Follow these steps:

1. In the Project navigator, click the JournalListViewController file. Modify the updateSearchResults(for:) method in the UISearchResultsUpdating extension as shown:

   //MARK: - Search
   func updateSearchResults(for searchController: UISearchController) {
     guard let searchBarText...