Rxjs filter operator not working with Angular2 Observable

[T]

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In this plunker I am trying to employ a filter operator on angular2 observable (Rxjs) inside class member.service.ts. The observable is fetched with an http request, which I process as follows: getMembers (): Observable<Member[]> { var one = this.http.get(this.memberUrl) .map( this.extractData ) //.filter(x => x.type==='member') return one } My question is: Why would the list not render when I uncomment the line with the filter (please view the in-memory-data.service.ts) ? In my opinion the observable is in an object state after the map operator, and does not have a type property. not sure though!. thanks.

[Lucas Lacroix]

It looks like x is an array, not an object. So... I think you need to:

.map(x => {

    return x.filter(y => y.type === 'member');

})

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Lucas Lacroix

Computer Scientist

System Technology Division, MEDITECH

781-774-2293