Type OperatorSwift

    +(_:_:)

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

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

    Parameters

    lhs

    A collection or finite sequence.

    rhs

    A range-replaceable collection.

    Overview

    The two arguments must have the same Element type. For example, you can concatenate the elements of a Range<Int> instance and an integer array.

    let numbers = [7, 8, 9, 10]
    let moreNumbers = (1...6) + numbers
    print(moreNumbers)
    // Prints "[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]"

    The resulting collection has the type of argument on the right-hand side. In the example above, moreNumbers has the same type as numbers, which is [Int].