solve JadenCase with kotlin

Author: dolong2

JadenCase 문자열 만들기/solution.kt

@@ -0,0 +1,9 @@
+class Solution {
+    fun solution(s: String): String =
+        s.lowercase().split(" ").joinToString(" ") {
+            if (it.isNotEmpty())
+                "${it[0].uppercase()}${it.substring(1)}"
+            else
+                it
+        }
+}