## Issue

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.

## Solution

This is the easiest/shortest method I can find.

Swift 3 and Swift 4:

```
let multiples = [...]
let sum = multiples.reduce(0, +)
print("Sum of Array is : ", sum)
```

Swift 2:

```
let multiples = [...]
sum = multiples.reduce(0, combine: +)
```

Some more info:

This uses Array’s reduce method (documentation here), which allows you to “reduce a collection of elements down to a single value by recursively applying the provided closure”. We give it 0 as the initial value, and then, essentially, the closure `{ $0 + $1 }`

. Of course, we can simplify that to a single plus sign, because that’s how Swift rolls.

Answered By – username tbd

Answer Checked By – Willingham (BugsFixing Volunteer)