lazy-cat

macro

since v0.0-1803

clojure.core/lazy-cat

Edit

Details:

(concat (lazy-seq x)
        (lazy-seq y)
        (lazy-seq z))

See Also:

• lazy-seq
• concat

Expands to code which yields a lazy sequence of the concatenation
of the supplied colls.  Each coll expr is not evaluated until it is
needed.

(lazy-cat xs ys zs) === (concat (lazy-seq xs) (lazy-seq ys) (lazy-seq zs))

(core/defmacro lazy-cat
  [& colls]
  `(concat ~@(map #(core/list `lazy-seq %) colls)))