Added an areEmptyRowsHidden property to UITableView: if set to true, hides the empty cells at the bottom of a table view by adding a view with a height of zero as a footer.

UITableView+areEmptyRowsHidden.swift

import UIKit

extension UITableView {
    @IBInspectable var areEmptyRowsHidden: Bool {
        set {
            tableFooterView = newValue ? UIView(frame: .zero) : nil
        }
        get {
            return tableFooterView != nil
        }
    }
}