cmccandless

class Job():
    def __init__(self, *args, **kwargs):
        pass

    def __call__(self, data):
        raise NotImplementedError()

class Square(Job):
    def __call__(self, data):
        return [d * d for d in data]

ramn

val primes: Stream[Int] = 2 #:: Stream.from(3).filter { n => !primes.takeWhile(_ <= math.sqrt(n)).exists(n % _ == 0) }

def isPrime(n: Int) = primes.dropWhile(_ < n).head == n