plus

Common
JVM
JS
Native
1.0
operator fun String?.plus(other: Any?): String

Concatenates this string with the string representation of the given other object. If either the receiver or the other object are null, they are represented as the string "null".

Native
1.3
operator fun <T> Array<T>.plus(elements: Array<T>): Array<T>

Returns an array containing all elements of the original array and then all elements of the given elements array.