Reverse Integer

def reverse(x)
    arr = x.to_s.split("")
    rev = []
    index = 1
    arr.each do |a|
        if a == "-" && rev.length == 0
            rev << a
            next
        end
        break if a == 0 && (rev.length - 1 == arr.length)
        rev[arr.length - index] = a 
        index += 1
    end
    rev.join.to_i
end

puts(reverse(-123))