(defn hello
"Writes hello message to *out*. Calls you by username.
Knows if you have been here before."
[username]
(dosync
(let [past-visitor (@visitors username)]
(if past-visitor
(str "Welcome back, " username)
(do
(alter visitors conj username)
(str "Hello, " username) ) ) ) ) )
The code is copied from book "Programming Clojure", I think the ) is
too much for reading. So, can we using the following style:
defn hello [username]
dosync
let [past-visitor (@visitors username)]
if past-visitor
str "welcome back, " username
do
alter visitors conj username
str "Hello, " username
The line indent contains the parenthesis and it looks it is much
friendly for ready.
I think clojure may mix both the parenthese and python-like indent
together.
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