void 0 is effectively a compile time bulletproof constant for undefined with no look-up requirements.
difference is that some browsers allow to overwrite undefined, yet not void 0
@example:
readonly notification$: Observable;
...
notification$ = source$.pipe(
mapTo(noValue)
);
void 0 is effectively a compile time bulletproof constant for undefined with no look-up requirements. difference is that some browsers allow to overwrite undefined, yet not void 0 @example: readonly notification$: Observable;
...
notification$ = source$.pipe(
mapTo(noValue)
);