Recursion.swift

import UIKit
var myArray = [[1],[2,2],[3,3,3]]

func getElementCount(array array_I : [AnyObject]) -> Int {
    var elementCount = 0
    guard let nestedArray = array_I as? [[AnyObject]] else {
        return array_I.count
    }
    for nest in nestedArray {
        elementCount += getElementCount(array: nest)
    }
    return elementCount
}

getElementCount(array: myArray)