Appends the elements of a sequence to a range-replaceable collection.
SDK
- Xcode 10.0+
Framework
- Swift Standard Library
Declaration
static func += <Other>(lhs: inout Self, rhs: Other) where Other : Sequence, Self.Element == Other.Element
Parameters
lhsThe array to append to.
rhsA 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.