Clojure - Side Effects Happening Out Of Order

Question

While dabbling in Clojure I\'ve written a very basic program to echo whatever the user types into it. However, it doesn\'t run in a way that I\'m perceiving to be natural. H

Answer 1

I know nothing of clojure but this sounds like a case of buffers not getting flushed. Figure out how to flush standard out after the print. The println function probably flushes at the end of each line. Try:

(defn goo []
  (print "echo> ")
  (flush )
  (def resp (read-line))
  (print resp)
)

Answer 2

Also, please don't use "def" unless you really, really want to define a global variable. Use "let" instead:

(defn goo []
  (print "echo> ")
  (flush)
  (let [resp (read-line)]
    (print resp)
    (flush)))

or, shorter

(defn goo []
  (print "echo> ")
  (flush)
  (print (read-line))
  (flush))