sainture
2/25/2018 - 6:45 AM

filter() operator

ngOnInit() {
  
  // produces a number every one second
  const numbers$ = of(1,2,3,4,5)
  
  numbers$.pipe(
    filter(x => x > 2)
  )
  .subscribe(x =>  console.log(x); )
 
  // output - 3,4,5
}