How to exchange elements in swift array?

Use swap:

var cellOrder = [1,2,3,4]swap(&cellOrder[0], &cellOrder[1])

Alternately, you can just assign it as a tuple:

(cellOrder[0], cellOrder[1]) = (cellOrder[1], cellOrder[0])

ios arrays swift nsmutablearray

Swift 4

swapAt(_:_:):

cellOrder.swapAt(index0, index1)

ios arrays swift nsmutablearray

One option is:

cellOrder[0...1] = [cellOrder[1], cellOrder[0]]

CodeHunter