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janet/examples/primes.janet
Vedor Vidurakis 0aa2f68793 Primes example fixed
It was failing due to unknown symbol "string/pretty"; (pp (primes 100)) works properly.
2019-05-16 12:03:54 +02:00

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# Return an array of primes. This is a trivial and extremely naive algorithm.
(defn primes
"Returns a list of prime numbers less than n."
[n]
(def list @[])
(for i 2 n
(var isprime? true)
(def len (length list))
(for j 0 len
(def trial (get list j))
(if (zero? (% i trial)) (set isprime? false)))
(if isprime? (array/push list i)))
list)
(pp (primes 100))