010 Summation of primes.sf

#!/usr/bin/ruby

# Author: Daniel "Trizen" Șuteu
# License: GPLv3
# Website: https://github.com/trizen

# The sum of the primes below 10 is 2 + 3 + 5 + 7 = 17.
# Find the sum of all the primes below two million.

# https://projecteuler.net/problem=10

# Runtime: 1.255s

func sum_primes(limit) {
    var sum = 0
    for (var p = 2; p < limit; p.next_prime!) {
        sum += p
    }
    return sum
}

say sum_primes(2e6)