21 lines
631 B
TypeScript
21 lines
631 B
TypeScript
/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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/* tslint:disable:no-console */
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// #docregion Observable
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import {Observable} from 'rxjs/Observable';
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import {Subscriber} from 'rxjs/Subscriber';
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import {map} from 'rxjs/operator/map';
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const obs = new Observable<number>((sub: Subscriber<number>) => {
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let i = 0;
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setInterval(() => sub.next(++i), 1000);
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});
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map.call(obs, (i: number) => `${i} seconds elapsed`).subscribe((msg: string) => console.log(msg));
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// #enddocregion
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