Swift Comparable Array extension

comparableArray.swift

[3,2,1] > [2,1,0] // true
[3,2,1] > [2,10,1000] // true
[3,4,2] < [3,4,3] // true
[3,4,2] > [2,4] // true
[3,4,2] == [3,4,2] // true

extension Array: Comparable where Element: Comparable {
    public static func < (lhs: Array<Element>, rhs: Array<Element>) -> Bool {
        for (a, b) in zip(lhs, rhs) where a != b {
            return a < b
        }
        return lhs.count < rhs.count
    }
}