1295. Find Numbers with Even Number of Digits

leetCode3

func findNumbers(_ nums: [Int]) -> Int {
    var res = 0
    if nums.count >= 1 && nums.count <= 500 {
    nums.map {
        if $0 >= 1 && $0 <= 100000 {
         
            var givenNum = $0
            var digits:[Int] = []
            
            repeat {
                let num = givenNum%10
                givenNum/=10
                digits.append(num)
            } while (givenNum != 0)
            
            if digits.count%2 == 0 {
                res += 1
            }
        }
    }
}
    return res
}