kotlin-stdlib/kotlin.collections/HashSet/add

add

expect open override fun add(element: E): Boolean(source)

Adds the specified element to the set.

Since Kotlin

1.0

Return

true if the element has been added, false if the element is already contained in the set.

actual open override fun add(element: E): Boolean(source)

Adds the specified element to the collection.

Since Kotlin

1.1

Return

true if the element has been added, false if the collection does not support duplicates and the element is already contained in the collection.