angular-docs-cn/modules/angular2/docs/core/03_pipes.md

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# Pipes
Pipes can be appended on the end of the expressions to translate the value to a different format. Typically used
to control the stringification of numbers, dates, and other data, but can also be used for ordering, mapping, and
reducing arrays. Pipes can be chained.
NOTE: Pipes are known as filters in Angular v1.
Pipes syntax is:
```
<div class="movie-copy">
<p>
{{ model.getValue('copy') | async | uppercase }}
</p>
<ul>
<li>
<b>Starring</b>: {{ model.getValue('starring') | async }}
</li>
<li>
<b>Genres</b>: {{ model.getValue('genres') | async }}
</li>
<ul>
</div>
```