Returns the section that the table view should scroll to for the given index title.
- iOS 3.0+
- Mac Catalyst 13.0+
- tvOS 10.2+
An integer identifying a section-index title by its position in the array of such titles.
An integer identifying the table-view section associated with
This method allows the table view to map between a given item in the section index and a given section even when there isn't a one-to-one mapping. In its implementation of
table, the data source can call this method on the indexed-collation object specifying as an argument the passed-in index integer; it then returns the result to the table view.