2016 Update

Task/FizzBuzz/Kotlin/fizzbuzz-1.kotlin

@@ -1,4 +1,4 @@
-public fun fizzBuzz() {
+fun fizzBuzz() {
     for (i in 1..100) {
         when {
             i % 15 == 0 -> println("FizzBuzz")

Task/FizzBuzz/Kotlin/fizzbuzz-2.kotlin

@@ -0,0 +1,7 @@
+fun fizzBuzz() {
+    fun fizzbuzz(x: Int) = if(x % 15 == 0) "FizzBuzz" else x
+    fun fizz(x: Any) = if(x is Int && x % 3  == 0) "Buzz" else x
+    fun buzz(x: Any) = if(x is Int && x.toInt() % 5 == 0) "Fizz" else x
+
+    (1..100).map { fizzbuzz(it) }.map { fizz(it) }.map { buzz(it) }.forEach { println(it) }
+}

Task/FizzBuzz/Kotlin/fizzbuzz-3.kotlin

@@ -0,0 +1,11 @@
+fun fizzBuzz() {
+    fun fizz(x: Pair<Int, StringBuilder>) = if(x.first % 3 == 0) x.apply { second.append("Fizz") } else x
+    fun buzz(x: Pair<Int, StringBuilder>) = if(x.first % 5 == 0) x.apply { second.append("Buzz") } else x
+    fun none(x: Pair<Int, StringBuilder>) = if(x.second.isBlank()) x.second.apply { append(x.first) } else x.second
+
+    (1..100).map { Pair(it, StringBuilder()) }
+            .map { fizz(it) }
+            .map { buzz(it) }
+            .map { none(it) }
+            .forEach { println(it) }
+}