For every element in the provided Traversable, append a value into the current collection


public function addAll(
  ?Traversable<Te> $traversable,
): this

It returns the current collection, meaning changes made to the current collection will be reflected in the returned collection.


  • $traversable - The Traversable with the new values to set. If null is provided, no changes are made.

Return Values

  • this - Returns itself.