How to convert Observable to array[]

Question

I have following method in typescript, I need to bind to angular grid

CountryService

GetCountries()  {
  return this.http.get(`http         


        

Answer 1

//Component. home.ts :

  contacts:IContacts[];


ionViewDidLoad() {
this.rest.getContacts()
.subscribe( res=> this.contacts= res as IContacts[]) ;

// reorderArray. accepts only Arrays

    Reorder(indexes){
  reorderArray(this.contacts, indexes)
}

// Service . res.ts

getContacts(): Observable {
return this.http.get(this.apiUrl+"?results=5")

And it works fine