June 2018 Update

Task/Sort-stability/Kotlin/sort-stability.kotlin

@@ -0,0 +1,10 @@
+// version 1.1.51
+
+fun main(args: Array<String>) {
+    val cities = listOf("UK London", "US New York", "US Birmingham", "UK Birmingham")
+    println("Original   : $cities")
+    // sort by country
+    println("By country : ${cities.sortedBy { it.take(2) } }")
+    // sort by city
+    println("By city    : ${cities.sortedBy { it.drop(3) } }")
+}