[#18] iolists

Author: elbrujohalcon

README.md

@@ -233,13 +233,7 @@ Erlang syntax is horrible amirite? So you might as well make the best of it, rig
 ##### IOLists over string concatenation
 > Use iolists instead of string concatenation whenever possible
 
-```erlang
-% bad
-"/users/" ++ UserId ++ "/events/" ++ EventsId
-
-% good
-["/users/", UserId, "/events/", EventsId]
-```
+*Examples*: [iolists](src/iolists.erl)
 
 *Reasoning*: Performance
 

src/iolists.erl

@@ -0,0 +1,7 @@
+-module(iolists).
+
+-export([good/1, bad/1]).
+
+bad(Param) -> "Hello " ++ binary_to_list(Param) ++ "! Have a nice day!".
+
+good(Param) -> ["Hello ", Param, "! Have a nice day!"].