feat(core): upgrade rxjs to 6.0.0-alpha.4 (#22573)

PR Close #22573

aio/content/examples/ngmodules/src/app/contact/contact.service.ts

@@ -1,8 +1,7 @@
 import { Injectable, OnDestroy } from '@angular/core';
 
-import { Observable } from 'rxjs/Observable';
-import { of }         from 'rxjs/observable/of';
-import { delay }      from 'rxjs/operator/delay';
+import { Observable, of } from 'rxjs';
+import { delay }      from 'rxjs/operators';
 
 export class Contact {
   constructor(public id: number, public name: string) { }
@@ -24,12 +23,12 @@ export class ContactService implements OnDestroy {
   ngOnDestroy() { console.log('ContactService instance destroyed.'); }
 
   getContacts(): Observable<Contact[]>  {
-    return delay.call(of(CONTACTS), FETCH_LATENCY);
+    return of(CONTACTS).pipe(delay(FETCH_LATENCY));
   }
 
   getContact(id: number | string): Observable<Contact> {
     const contact$ = of(CONTACTS.find(contact => contact.id === +id));
-    return delay.call(contact$, FETCH_LATENCY);
+    return contact$.pipe(delay(FETCH_LATENCY));
   }
 }
 

aio/content/examples/ngmodules/src/app/customers/customers-list.component.ts

@@ -1,5 +1,5 @@
 import { Component, OnInit } from '@angular/core';
-import { Observable } from 'rxjs/Observable';
+import { Observable } from 'rxjs';
 
 import { Customer,
          CustomersService } from './customers.service';

aio/content/examples/ngmodules/src/app/customers/customers.service.ts

@@ -1,8 +1,7 @@
 import { Injectable, OnDestroy } from '@angular/core';
 
-import { Observable } from 'rxjs/Observable';
-import { of }         from 'rxjs/observable/of';
-import { delay }      from 'rxjs/operator/delay';
+import { Observable, of } from 'rxjs';
+import { delay }      from 'rxjs/operators';
 
 export class Customer {
   constructor(public id: number, public name: string) { }
@@ -27,11 +26,11 @@ export class CustomersService implements OnDestroy {
   ngOnDestroy() { console.log('CustomersService instance destroyed.'); }
 
   getCustomers(): Observable<Customer[]>  {
-    return delay.call(of(CUSTOMERS), FETCH_LATENCY);
+    return of(CUSTOMERS).pipe(delay(FETCH_LATENCY));
   }
 
   getCustomer(id: number | string): Observable<Customer> {
     const customer$ = of(CUSTOMERS.find(customer => customer.id === +id));
-    return delay.call(customer$, FETCH_LATENCY);
+    return customer$.pipe(delay(FETCH_LATENCY));
   }
 }

aio/content/examples/ngmodules/src/app/items/items-list.component.ts

@@ -1,5 +1,5 @@
 import { Component, OnInit } from '@angular/core';
-import { Observable }from 'rxjs/Observable';
+import { Observable }from 'rxjs';
 
 import { Item,
          ItemService }     from './items.service';

aio/content/examples/ngmodules/src/app/items/items.module.ts

@@ -1,6 +1,7 @@
 import { NgModule }      from '@angular/core';
 import { CommonModule }  from '@angular/common';
 
+import { ItemsComponent } from './items.component';
 import { ItemsListComponent }    from './items-list.component';
 import { ItemsDetailComponent }  from './items-detail.component';
 import { ItemService }          from './items.service';
@@ -8,7 +9,7 @@ import { ItemsRoutingModule }    from './items-routing.module';
 
 @NgModule({
   imports:      [ CommonModule, ItemsRoutingModule ],
-  declarations: [ ItemsDetailComponent, ItemsListComponent ],
+  declarations: [ ItemsComponent, ItemsDetailComponent, ItemsListComponent ],
   providers:    [ ItemService ]
 })
 export class ItemsModule {}

aio/content/examples/ngmodules/src/app/items/items.service.ts

@@ -1,8 +1,7 @@
 import { Injectable, OnDestroy } from '@angular/core';
 
-import { Observable } from 'rxjs/Observable';
-import { of }         from 'rxjs/observable/of';
-import { delay }      from 'rxjs/operator/delay';
+import { Observable, of } from 'rxjs';
+import { delay }      from 'rxjs/operators';
 
 export class Item {
   constructor(public id: number, public name: string) { }
@@ -25,12 +24,12 @@ export class ItemService implements OnDestroy {
   ngOnDestroy() { console.log('ItemService instance destroyed.'); }
 
   getItems(): Observable<Item[]>  {
-    return delay.call(of(ITEMS), FETCH_LATENCY);
+    return of(ITEMS).pipe(delay(FETCH_LATENCY));
   }
 
   getItem(id: number | string): Observable<Item> {
     const item$ = of(ITEMS.find(item => item.id === +id));
-    return delay.call(item$, FETCH_LATENCY);
+    return item$.pipe(delay(FETCH_LATENCY));
   }
 }