44 lines
1.1 KiB
JavaScript
44 lines
1.1 KiB
JavaScript
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import { Observable } from '../Observable';
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export function range(start = 0, count, scheduler) {
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return new Observable(subscriber => {
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if (count === undefined) {
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count = start;
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start = 0;
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}
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let index = 0;
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let current = start;
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if (scheduler) {
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return scheduler.schedule(dispatch, 0, {
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index, count, start, subscriber
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});
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}
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else {
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do {
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if (index++ >= count) {
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subscriber.complete();
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break;
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}
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subscriber.next(current++);
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if (subscriber.closed) {
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break;
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}
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} while (true);
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}
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return undefined;
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});
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}
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export function dispatch(state) {
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const { start, index, count, subscriber } = state;
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if (index >= count) {
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subscriber.complete();
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return;
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}
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subscriber.next(start);
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if (subscriber.closed) {
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return;
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}
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state.index = index + 1;
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state.start = start + 1;
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this.schedule(state);
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}
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//# sourceMappingURL=range.js.map
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