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										 |  |  | // #docregion Observable
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										 |  |  | import {Observable} from 'rxjs/Observable'; | 
					
						
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										 |  |  | var obs = new Observable<number>(obs => { | 
					
						
							|  |  |  |   var i = 0; | 
					
						
							|  |  |  |   setInterval(_ => { obs.next(++i); }, 1000); | 
					
						
							|  |  |  | }); | 
					
						
							|  |  |  | obs.subscribe(i => console.log(`${i} seconds elapsed`)); | 
					
						
							|  |  |  | // #enddocregion
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