index(before:)

Other members in extension

Typealiases

• typealias Index

  The index type for arrays, Int.

• typealias Indices

  The type that represents the indices that are valid for subscripting an array, in ascending order.

• typealias Iterator

  The type that allows iteration over an array’s elements.

Type members

• init()

  Creates a new, empty array.

• init<S>(S)

  Creates an array containing the elements of a sequence.

• init(arrayLiteral: Element...)

  Creates an array from the given array literal.

• init(repeating: Element, count: Int)

  Creates a new array containing the specified number of a single, repeated value.

Instance members

• var capacity: Int

  The total number of elements that the array can contain without allocating new storage.

• var count: Int

  The number of elements in the array.

• var customMirror: Mirror

  A mirror that reflects the array.

• var debugDescription: String

  A textual representation of the array and its elements, suitable for debugging.

• var description: String

  A textual representation of the array and its elements.

• var endIndex: Int

  The array’s “past the end” position—that is, the position one greater than the last valid subscript argument.

• var startIndex: Int

  The position of the first element in a nonempty array.

• subscript(Range<Int>) -> ArraySlice<Element>

  Accesses a contiguous subrange of the array’s elements.

• subscript(Int) -> Element

  Accesses the element at the specified position.

• func append(Element)

  Adds a new element at the end of the array.

• func append<S>(contentsOf: S)

  Adds the elements of a sequence to the end of the array.

• func distance(from: Int, to: Int) -> Int

  Returns the distance between two indices.

• func formIndex(after: inout Int)
• func formIndex(before: inout Int)
• func index(Int, offsetBy: Int) -> Int

  Returns an index that is the specified distance from the given index.

• func index(Int, offsetBy: Int, limitedBy: Int) -> Int?

  Returns an index that is the specified distance from the given index, unless that distance is beyond a given limiting index.

• func index(after: Int) -> Int

  Returns the position immediately after the given index.

• func insert(Element, at: Int)

  Inserts a new element at the specified position.

• func remove(at: Int) -> Element

  Removes and returns the element at the specified position.

• func removeAll(keepingCapacity: Bool)

  Removes all elements from the array.

• func replaceSubrange<C>(Range<Int>, with: C)

  Replaces a range of elements with the elements in the specified collection.

• func reserveCapacity(Int)

  Reserves enough space to store the specified number of elements.

• func withContiguousMutableStorageIfAvailable<R>((inout UnsafeMutableBufferPointer<Element>) throws -> R) rethrows -> R?
• func withContiguousStorageIfAvailable<R>((UnsafeBufferPointer<Element>) throws -> R) rethrows -> R?
• func withUnsafeBufferPointer<R>((UnsafeBufferPointer<Element>) throws -> R) rethrows -> R

  Calls a closure with a pointer to the array’s contiguous storage.

• func withUnsafeBytes<R>((UnsafeRawBufferPointer) throws -> R) rethrows -> R

  Calls the given closure with a pointer to the underlying bytes of the array’s contiguous storage.

• func withUnsafeMutableBufferPointer<R>((inout UnsafeMutableBufferPointer<Element>) throws -> R) rethrows -> R

  Calls the given closure with a pointer to the array’s mutable contiguous storage.

• func withUnsafeMutableBytes<R>((UnsafeMutableRawBufferPointer) throws -> R) rethrows -> R

  Calls the given closure with a pointer to the underlying bytes of the array’s mutable contiguous storage.