[Home](./index.md) > [rc-js-util](./rc-js-util.md) > [mapClearingDeleteFromSet](./rc-js-util.mapclearingdeletefromset.md) ## mapClearingDeleteFromSet() function Used with maps that store sets. Where a set exists for a given key the value will be removed from that set, if it is empty after removal, then the set is deleted. **Signature:** ```typescript export declare function mapClearingDeleteFromSet(map: Map>, key: TKey, value: TValue): boolean; ``` ## Parameters

Parameter	Type	Description
map	Map<TKey, [ISetLike](./rc-js-util.isetlike.md)<TValue>>	The `Map` to check. May be modified.
key	TKey	The key to lookup in `map`.
value	TValue	The value to remove.

**Returns:** boolean true - If value was removed. ## Remarks See [mapDeleteFromSet()](./rc-js-util.mapdeletefromset.md).