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docs: fix typo in Pipes guide (aynchronous --> asynchronous) (#38996)

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PR Close #38996
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Aleksandr Maniunin 2020-09-25 22:14:05 +07:00 committed by Joey Perrott
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aio/content/guide/pipes.md
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@ -397,7 +397,7 @@ The following code example binds an observable of message strings
## Caching HTTP requests ## Caching HTTP requests
To [communicate with backend services using HTTP](/guide/http "Communicating with backend services using HTTP"), the `HttpClient` service uses observables and offers the `HTTPClient.get()` method to fetch data from a server. To [communicate with backend services using HTTP](/guide/http "Communicating with backend services using HTTP"), the `HttpClient` service uses observables and offers the `HTTPClient.get()` method to fetch data from a server.
The aynchronous method sends an HTTP request, and returns an observable that emits the requested data for the response. The asynchronous method sends an HTTP request, and returns an observable that emits the requested data for the response.
As shown in the previous section, you can use the impure `AsyncPipe` to accept an observable as input and subscribe to the input automatically. As shown in the previous section, you can use the impure `AsyncPipe` to accept an observable as input and subscribe to the input automatically.
You can also create an impure pipe to make and cache an HTTP request. You can also create an impure pipe to make and cache an HTTP request.