Is there any built-in for `String` to ensure that ...

# announcements

[poohbar]

Is there any built-in for String to ensure that a string ends with a certain character? Also called "append if missing" in some libraries.

e.g.
foo("word", ".") -> word.
foo("word.", ".") -> word.

[nils]

Kotlin does not have this built-in function, as far as I know. However, would this work for you?

Snippet.kt