docs: Replace $emdash; with an actual em dash (#37723)

fix documentation in the lifecycle hooks guide where $emdash; was not being replaced by an actual em dash (-)

PR Close #37723
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Trung Vo 2020-06-25 10:34:32 +08:00 committed by Andrew Kushnir
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@ -495,7 +495,7 @@ for one turn of the browser's JavaScript cycle, which triggers a new change-dete
#### Write lean hook methods to avoid performance problems #### Write lean hook methods to avoid performance problems
When you run the *AfterView* sample, notice how frequently Angular calls `AfterViewChecked()`$emdash;often when there are no changes of interest. When you run the *AfterView* sample, notice how frequently Angular calls `AfterViewChecked()`-often when there are no changes of interest.
Be very careful about how much logic or computation you put into one of these methods. Be very careful about how much logic or computation you put into one of these methods.
<div class="lightbox"> <div class="lightbox">