Function filterMap

filterMap<T, U>(
mapper: (value: T, context: OperatorContext) => U,
): Operator<T, NonNullable<Awaited<U>>>
Maps each value sequentially and emits only results that are neither null nor undefined.

Other falsy values (0, false, "", NaN) are kept.
Type Parameters
- T
- U
Parameters
- mapper: (value: T, context: OperatorContext) => U
Returns Operator<T, NonNullable<Awaited<U>>>