map-find-last ( ... seq quot: ( ... elt -- ... result/f ) -- ... result elt )
Factor handbook » The language » Collections » Sequence operations » Searching sequences

Prev:

map-find ( ... seq quot: ( ... elt -- ... result/f ) -- ... result elt )

Vocabulary
sequences

Inputs

seq	a sequence
quot	a quotation with stack effect ( ... elt -- ... result/f )

Outputs

result	the last non-false result of the quotation
elt	the last matching element or f

Word description
Applies the quotation to each element of the sequence from the tail, until the quotation outputs a true value. If the quotation ever yields a result which is not f, then the value is output, along with the element of the sequence which yielded this.

See also
map-find

Definition

USING: sequences.private ;

IN: sequences

: map-find-last
    ( ... seq quot: ( ... elt -- ... result/f ) -- ... result elt )
    [ find-last ] (map-find) ; inline