@reactivex/ix-esnext-esm
Version:
The Interactive Extensions for JavaScript
43 lines (41 loc) • 1.45 kB
JavaScript
import { AsyncIterableX } from '../asynciterablex';
import { wrapWithAbort } from './withabort';
import { throwIfAborted } from '../../aborterror';
export class RepeatAsyncIterable extends AsyncIterableX {
constructor(source, count) {
super();
this._source = source;
this._count = count;
}
async *[Symbol.asyncIterator](signal) {
throwIfAborted(signal);
if (this._count === -1) {
while (1) {
for await (const item of wrapWithAbort(this._source, signal)) {
yield item;
}
}
}
else {
for (let i = 0; i < this._count; i++) {
for await (const item of wrapWithAbort(this._source, signal)) {
yield item;
}
}
}
}
}
/**
* Repeats the async-enumerable sequence a specified number of times.
*
* @export
* @template TSource The type of the elements in the source sequence.
* @param {number} [count=-1] Number of times to repeat the sequence. If not specified, the sequence repeats indefinitely.
* @returns {MonoTypeOperatorAsyncFunction<TSource>} The async-iterable sequence producing the elements of the given sequence repeatedly.
*/
export function repeat(count = -1) {
return function repeatOperatorFunction(source) {
return new RepeatAsyncIterable(source, count);
};
}
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