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docs: replace alert-is-helpful with alert is-helpful (#26497)

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PR Close #26497
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Alan
2018-10-17 14:58:11 +02:00
committed by Misko Hevery
parent bf1a13e5e1
commit 2f28e6a62d
4 changed files with 12 additions and 12 deletions
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aio/content/guide/hierarchical-dependency-injection.md
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@ -25,7 +25,7 @@ When you specify providers in the `@Injectable()` decorator of the service itsel
You're likely to inject `UserService` in many places throughout the app and will want to inject the same service instance every time. Providing `UserService` through the `root` injector is a good choice, and is the default that the [Angular CLI](cli) uses when you generate a service for your app.
<div class="alert-is-helpful">
<div class="alert is-helpful">
<header>Platform injector</header>
When you use `providedIn:'root'`, you are configuring the root injector for the _app_, which is the injector for `AppModule`.