Construct an element with initial values.

Tips and Traps¶

1. Notice that Iterable.map returns a List instead of an iterator. Since almost all collections in Kotlin eventually inherit from Iterable, the map method of all collections (including HashMap) in Kotlin returns List.

References¶

https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/-iterable/

Create an Empty List¶

sorted¶

If elements in a List implements the Comparable interface, you can call the method sorted to return a sorted List (in nature order).

Note: Pair in Kotin does not implement the Comparable interface!!!

References¶

https://kotlinlang.org/docs/reference/returns.html

Break at label is a convenient way to jump out of a nested loop.