index(before:)
Returns the position immediately before the given index.
func index(before i: Int) -> Int Parameters
- i
A valid index of the collection.
imust be greater thanstartIndex.
Returns
The index immediately before i.
Returns the position immediately before the given index.
func index(before i: Int) -> Int A valid index of the collection. i must be greater than startIndex.
The index immediately before i.