RosettaCodeData/Task/Collections/REXX/collections-4.rexx
2019-09-12 10:33:56 -07:00

15 lines
867 B
Rexx

primeList = '2 3 5 7 11 13 17 19 23 29 31 37 41 43' /* or ··· */
primeList = 2 3 5 7 11 13 17 19 23 29 31 37 41 43
/*in this case, the quotes (') can be elided.*/
primes= words(primeList) /*the WORDS BIF counts the number of blank─ */
/*separated words (in this case, prime numbers)*/
/*in the value of the variable "primeList".*/
do j=1 for primes /*can also be coded as: do j=1 to primes */
say 'prime' j "is" word(primeList, j)
/*this method (using the WORD BIF) isn't */
/*very efficient for very large arrays (those */
/*with many many thousands of elements). */
end /*j*/