How to test a query which returns no result

[Anthony2539]

I have just migrated to angularfire2 5.0.0-rc.2.

Before I had this :
const searchHashtag = this.searchHashtag(hashtag);
const subscribe = searchHashtag.subscribe(snapshots=>{ if(snapshots.length > 0){ .... }else{ .... }
and now i replace it by this:
const searchHashtag = this.searchHashtag(hashtag);
const subscribe = searchHashtag.snapshotChanges().subscribe(snapshots=>{ if(snapshots.length > 0){ .... }else{ .... }

But when the searchHashtag return no results, the subscribe are no trigger.
How i can fix it ?

thx

[Nebula-Spark]

@Anthony2539
May be Try This,
const searchHashtag = this.db.list('hashtag/').valueChanges()
const subscribe = searchHashtag.subscribe( (snapshots:any)=>{ if(snapshots.length > 0){ .... }else{ .... }

[jamesdaniels]

Working on it now #1220