import { Observable, ObservableInput } from 'rxjs'; /** * Projects each source value to the same Observable which is merged multiple * times in the output Observable. * * It's like {@link mergeMap}, but maps each value always * to the same inner Observable. * * * * Maps each source value to the given Observable `innerObservable` regardless * of the source value, and then merges those resulting Observables into one * single Observable, which is the output Observable. * * @example For each click event, start an interval Observable ticking every 1 second * var clicks = Rx.Observable.fromEvent(document, 'click'); * var result = clicks.mergeMapTo(Rx.Observable.interval(1000)); * result.subscribe(x => console.log(x)); * * @see {@link concatMapTo} * @see {@link merge} * @see {@link mergeAll} * @see {@link mergeMap} * @see {@link mergeScan} * @see {@link switchMapTo} * * @param {ObservableInput} innerObservable An Observable to replace each value from * the source Observable. * @param {number} [concurrent=Number.POSITIVE_INFINITY] Maximum number of input * Observables being subscribed to concurrently. * @return {Observable} An Observable that emits items from the given * `innerObservable`. * @method mergeMapTo * @owner Observable */ export declare function mergeMapTo(this: Observable, innerObservable: ObservableInput, concurrent?: number): Observable;