url-exists? ( url unique-deque -- ? )

Vocabulary

spider.unique-deque

Inputs

url	an object
unique-deque	an object

Outputs

?

an object

Definition

USING: accessors assocs kernel ;

IN: spider.unique-deque

: url-exists? ( url unique-deque -- ? )
    [ url>> ] [ assoc>> ] bi* key? ;