Type OperatorSwift

    +=(_:_:)

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

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

    Parameters

    lhs

    The array to append to.

    rhs

    A collection or finite sequence.

    Overview

    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]"