Home > rc-js-util > mapFirstValue
Gets the first inserted value in a Map.
Signature:
export declare function mapFirstValue<K, V>(map: Map<K, V>): V | undefined;
| Parameter | Type | Description |
|---|---|---|
| map | Map<K, V> |
Returns:
V | undefined
The first value in map, otherwise undefined where size 0.
See mapFirstValue().