Opposite of slurp. Opens f with writer, writes content, then| clojuredocs.org
Returns a lazy sequence consisting of the result of applying f to| clojuredocs.org
Returns a new coll consisting of to with all of the items of| clojuredocs.org
Returns a lazy sequence of x, (f x), (f (f x)) etc. f must be free of side-effects| clojuredocs.org