addAll Method
Add multiple items to the set, raising onBatchAdded only once after all items are added. This is more efficient than calling add in a loop when listeners need not be notified of each individual addition.
addAll(items: Iterable<T, any, any>): number
@returns The number of items that were actually added (i.e., were not already present).
| Parameter | Type | Description |
|---|---|---|
| items | Iterable<T, any, any> | The items to add. |
Returns - number
The number of items that were actually added (i.e., were not already present).
Defined in
Last Updated: 13 March, 2026
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