Instance MethodSwift

    swapAt(_:_:)

    Exchanges the values at the specified indices of the collection.

    mutating func swapAt(_ i: Self.Index, _ j: Self.Index)

    Parameters

    i

    The index of the first value to swap.

    j

    The index of the second value to swap.

    Overview

    Both parameters must be valid indices of the collection that are not equal to endIndex. Calling swapAt(_:_:) with the same index as both i and j has no effect.