The range operator (..) is also pretty cool, since we're all lazy now. Here's an infinite lazy list of prime numbers in Perl 6 (declared as a constant because y

The range operator (..) is also pretty cool, since we're all lazy now. Here's an infinite lazy list of prime numbers in Perl 6 (declared as a constant because you presumably don't want to change 'em): constant primes = grep { .is-prime }, 1 .. *;