within ( seq set -- subseq )
Factor handbook » The language » Collections » Sets » Operations on sets

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Vocabulary
sets

Inputs

seq	a sequence
set	a set

Outputs

subseq

a sequence

Word description
Returns the subsequence of the given sequence consisting of members of the set. This may contain duplicates, if the sequence has duplicates.

Definition

USING: sequences sets.private ;

IN: sets

: within ( seq set -- subseq ) tester filter ;