open fun addAll(elements: Collection<E>): Boolean
Platform and version requirements: JS
Adds all of the elements in the specified collection to this collection.
Return true if any of the specified elements was added to the collection, false if the collection was not modified.
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Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/-abstract-mutable-collection/add-all.html