Finding sum of elements in Swift array

Question

What is the easiest (best) way to find the sum of an array of integers in swift? I have an array called multiples and I would like to know the sum of the multiples.

Answer 1

How about the simple way of

for (var i = 0; i < n; i++) {
 sum = sum + Int(multiples[i])!
}

//where n = number of elements in the array