add Method
Add a key or keys to this KeySet.
add(value: Key | Keys, pred?: (key: Key) => boolean): KeySet
| Parameter | Type | Description |
|---|---|---|
| value | Key | Keys | A key or keys to add. |
| pred | (key: Key) => boolean | An optional predicate function that indicates whether a key should be added |
Returns - KeySet
itself
Defined in
Last Updated: 20 June, 2023