Function defined

defined<T>(): OperatorFunction<
    T
    | null
    | undefined,
    T extends null | undefined ? never : T,
>
Returns an RxJS operator to filter out null and undefined items from the source Observable.
Type Parameters
- T
Returns OperatorFunction<T | null | undefined, T extends null | undefined ? never : T>
a function that transforms the source Observable
- Defined in rxjs.ts:183