Determine the number of rows in each of a UITableView's sections

numberOfRowsInSection.swift

//  Use tableView(_:numberOfRowsInSection:) to determine the number of rows each section of a UITableView should display.
//  This example exhibits how this app makes use of this method.

//  Create some sort of data source. This is often an array or, in this case, a dictionary.
var dataSource: [String: String] {
        return ["cellForRowAt: indexPath": "Update cell information based on the data source\nReturns a UITableViewCell.",
                "numberOfRowsInSection: Int": "Determine the number of rows needed for each section of the tableView\nReturns an Int",
                "titleForHeaderInSection: Int": "Set the title for a particular section of your tableView\nReturns a String"]
    }
    
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    //  Use the count of the data source to determine how many rows will be in each section. In this case, there's only one
    //  section, so this will give the number of cells for the entire table view.
        return dataSource.count
    }