How to get a UITableView's visible sections?

Question

UITableView provides the methods indexPathsForVisibleRows and visibleCells, but how can I get the visible sections?

Answer 1

Have you tried this in Swift 4?

let sections = tableView.indexPathsForVisibleRows?.map { $0.section } ?? []
for section in sections { 
    print(String(format: "%d", section)) 
}