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Contents
import { Subscriber } from '../Subscriber';
import { EmptyObservable } from '../observable/EmptyObservable';
/**
* Returns an Observable that repeats the stream of items emitted by the source Observable at most count times.
*
* <img src="./img/repeat.png" width="100%">
*
* @param {number} [count] The number of times the source Observable items are repeated, a count of 0 will yield
* an empty Observable.
* @return {Observable} An Observable that repeats the stream of items emitted by the source Observable at most
* count times.
* @method repeat
* @owner Observable
*/
export function repeat(count = -1) {
return (source) => {
if (count === 0) {
return new EmptyObservable();
}
else if (count < 0) {
return source.lift(new RepeatOperator(-1, source));
}
else {
return source.lift(new RepeatOperator(count - 1, source));
}
};
}
class RepeatOperator {
constructor(count, source) {
this.count = count;
this.source = source;
}
call(subscriber, source) {
return source.subscribe(new RepeatSubscriber(subscriber, this.count, this.source));
}
}
/**
* We need this JSDoc comment for affecting ESDoc.
* @ignore
* @extends {Ignored}
*/
class RepeatSubscriber extends Subscriber {
constructor(destination, count, source) {
super(destination);
this.count = count;
this.source = source;
}
complete() {
if (!this.isStopped) {
const { source, count } = this;
if (count === 0) {
return super.complete();
}
else if (count > -1) {
this.count = count - 1;
}
source.subscribe(this._unsubscribeAndRecycle());
}
}
}
//# sourceMappingURL=repeat.js.map
Version data entries
49 entries across 49 versions & 4 rubygems