3map-as ( ... seq1 seq2 seq3 quot: ( ... elt1 elt2 elt3 -- ... newelt ) exemplar -- ... newseq )
Factor handbook » The language » Collections » Sequence operations » Sequence combinators » Triple-wise sequence combinators
Prev:3map ( ... seq1 seq2 seq3 quot: ( ... elt1 elt2 elt3 -- ... newelt ) -- ... newseq )


Vocabulary
sequences

Inputs
seq1a sequence
seq2a sequence
seq3a sequence
quota quotation with stack effect ( ... elt1 elt2 elt3 -- ... newelt )
exemplara sequence


Outputs
newseqa new sequence


Word description
Applies the quotation to each triple of elements in turn, yielding new elements which are collected into a new sequence having the same class as exemplar.

Definition
USING: kernel sequences.private ;

IN: sequences

: 3map-as
( ... seq1 seq2 seq3 quot: ( ... elt1 elt2 elt3 -- ... newelt ) exemplar -- ... newseq )
[ 3length-operator ] dip map-integers-as ; inline