Function $exists

Matches documents that contain or do not contain a specified field, including documents where the field value is null.

$exists(
    selector: string,
    value: unknown,
    _options: Options,
): (o: AnyObject) => boolean
Parameters
- selector: string
- value: unknown
- _options: Options
Returns (o: AnyObject) => boolean
- Defined in src/operators/query/element/exists.ts:10