Iterator Builtins

from

itrs:from LIST

Returns an iterator which will step through the elements of LIST.

tap

itrs:tap ITR BLOCK

Returns an iterator which will execute BLOCK for each element consumed. The elements are consumed from the iterator ITR. BLOCK will only be executed when the element is consumed.

to-list

itrs:to-list ITR

Consume the elements of the iterator ITR and return the elements as a list.