core.countwhere | Medplum
countWhere() function
Signature:
export declare function countWhere<T>(items: Iterable<T>, fn: (value: T) => boolean): number;
Parameters [](/content/docs/sdk/core.countwhere#parameters "Direct link to Parameters"/index.html)
| Parameter | Type | Description |
|---|---|---|
| items | Iterable |
|
| fn | (value: T) => boolean |
Returns:
number