docs(aio): http guide shows how to import toPromise operator from rxjs

Solves #17454
2017-06-13 11:51:30 +02:00 · 2017-06-13 11:51:30 +02:00 · 06a0cf2e31
parent a8afa65a54
commit 06a0cf2e31
1 changed files with 3 additions and 0 deletions
--- a/aio/content/guide/http.md
+++ b/aio/content/guide/http.md
@ -407,6 +407,9 @@ like the Observable-based version.

 </div>

+First, make sure to import the `toPromise` operator of the RxJS library.
+
+<code-example path="http/src/app/toh/hero.service.promise.ts" region="rxjs-imports" title="src/app/toh/hero.service.promise.ts (import rxjs)" linenums="false"></code-example>

 Here is a comparison of the `HeroService` using Promises versus Observables,
 highlighting just the parts that are different.