3each ( ... seq1 seq2 seq3 quot: ( ... elt1 elt2 elt3 -- ... ) -- ... )
Factor handbook » The language » Collections » Sequence operations » Sequence combinators » Triple-wise sequence combinators

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3map ( ... seq1 seq2 seq3 quot: ( ... elt1 elt2 elt3 -- ... newelt ) -- ... newseq )

Vocabulary
sequences

Inputs

seq1	a sequence
seq2	a sequence
seq3	a sequence
quot	a quotation with stack effect ( ... elt1 elt2 elt3 -- ... )

Outputs
None

Word description
Applies the quotation to triples of elements from seq1, seq2 and seq3.

Definition

USING: math sequences.private ;

IN: sequences

: 3each
    ( ... seq1 seq2 seq3 quot: ( ... elt1 elt2 elt3 -- ... ) -- ... )
    3length-operator each-integer ; inline