mapTo deprecated@deprecatedTo be removed in v9. Use map instead: map(() => value). function mapTo<R>(value: R): OperatorFunction<unknown, R>;function mapTo<T, R>(value: R): OperatorFunction<T, R>;§mapTo<R>(value: R): OperatorFunction<unknown, R>[src]§Type Parameters§R[src]§Parameters§value: R[src]§Return Type§OperatorFunction<unknown, R>[src]§mapTo<T, R>(value: R): OperatorFunction<T, R>[src]§Type Parameters§T[src]§R[src]§Parameters§value: R[src]§Return Type§OperatorFunction<T, R>[src]