Some cleanup & adding a better-syntax of the function toughie.

ideaboard.txt

@@ -7,7 +7,6 @@ lazy sequences
 recursion
 recursive list processing
 trampolining
-currying / pfa
 reflection
 Destructuring
 Metadata

src/koans/conditionals.clj

@@ -1,16 +1,24 @@
 (meditations
   "You will face many decisions"
-  (= __ (if (false? (= 4 5)) :a :b))
+  (= __ (if (false? (= 4 5))
+            :a
+            :b))
 
   "Some of them leave you no alternative"
-  (= __ (if (> 4 3) []))
+  (= __ (if (> 4 3)
+            []))
 
   "And in such a case you may have nothing"
-  (= nil (if (nil? __) [:a :b :c]))
+  (= nil (if (nil? __)
+             [:a :b :c]))
 
   "In others your alternative may be interesting"
-  (= :glory (if (not (empty? ())) :doom __))
+  (= :glory (if (not (empty? ()))
+                :doom
+                __))
 
   "Or your fate may be sealed"
-  (= __ (if-not (zero? __) 'doom 'doom)))
+  (= __ (if-not (zero? __)
+                'doom
+                'doom)))
 

src/koans/functions.clj

@@ -1,6 +1,8 @@
 (defn multiply-by-ten [n]
   (* 10 n))
 
+(defn square [n] (* n n))
+
 (meditations
   "Functions are often defined before they are used"
   (= __ (multiply-by-ten 2))
@@ -18,4 +20,7 @@
 
   "Higher-order functions take function arguments"
   (= 25 (___
-          (fn [n] (* n n)))))
+          (fn [n] (* n n))))
+
+  "But they are often better written using the names of functions"
+  (= 25 (___ square)))

src/path_to_answer_sheet.clj

@@ -54,7 +54,8 @@
                       10 5
                       30 2
                       20 "*"]
-                "___" ["(fn [f] (f 5))"]}
+                "___" ["(fn [f] (f 5))"
+                       "(fn [f] 25)"]}
    "conditionals" {"__" [:a
                          []
                          0