11 lines
		
	
	
		
			352 B
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
			
		
		
	
	
			11 lines
		
	
	
		
			352 B
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
// #docregion Observable
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import {Observable, Subscriber} from 'rxjs/Rx';
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import {map} from 'rxjs/operator/map';
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var obs = new Observable<number>((sub: Subscriber<number>) => {
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  var 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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