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Revision as of 01:29, 9 July 2022
Distinct
?x
distinct, a.k.a. unique or uniq, returns a copy of its argument without duplicate items (according to the definition of match). K9 additionally sorts the result.
?"abracadabra" "abrcd"
?"abracadabra" /k9 "abcdr"
{x@&(x?x)=!#x} /k9 unsorted unique