The position of the first element in a nonempty array.
SDK
Framework
var startIndex: Int { get }
For an instance of Array, start is always zero. If the array is empty, start is equal to end.
var endThe array’s “past the end” position—that is, the position one greater than the last valid subscript argument.
func index(after: Int) -> IntReturns the position immediately after the given index.
func formReplaces the given index with its successor.
func index(before: Int) -> IntReturns the position immediately before the given index.
func formReplaces the given index with its predecessor.
func index(Int, offsetReturns an index that is the specified distance from the given index.
func formOffsets the given index by the specified distance.
func index(Int, offsetReturns an index that is the specified distance from the given index, unless that distance is beyond a given limiting index.
func formOffsets the given index by the specified distance, or so that it equals the given limiting index.
func distance(from: Int, to: Int) -> IntReturns the distance between two indices.
var indices: Range<Int>The indices that are valid for subscripting the collection, in ascending order.