Generic Operator

+=(_:_:)

Appends the elements of a sequence to a range-replaceable collection.

Declaration

static func += <Other>(lhs: inout Array<Element>, rhs: Other) where Other : Sequence, Self.Element == Other.Element

Parameters

lhs

The array to append to.

rhs

A collection or finite sequence.

Discussion

Use this operator to append the elements of a sequence to the end of range-replaceable collection with same Element type. This example appends the elements of a Range<Int> instance to an array of integers.

var numbers = [1, 2, 3, 4, 5]
numbers += 10...15
print(numbers)
// Prints "[1, 2, 3, 4, 5, 10, 11, 12, 13, 14, 15]"

Complexity: O(m), where m is the length of the right-hand-side argument.

See Also

Combining Arrays

func append<S>(contentsOf: S)

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

func append<S>(contentsOf: S)

Adds the elements of a sequence or collection to the end of this collection.

static func + <Other>(Other, Array<Element>) -> Array<Element>

Creates a new collection by concatenating the elements of a sequence and a collection.

static func + <Other>(Array<Element>, Other) -> Array<Element>

Creates a new collection by concatenating the elements of a collection and a sequence.

static func + (Array<Element>, Array<Element>) -> Array<Element>
static func + <Other>(Array<Element>, Other) -> Array<Element>

Creates a new collection by concatenating the elements of two collections.

static func += (inout Array<Element>, Array<Element>)