Filters are used for formatting data displayed to the user.
They can be used in view templates, controllers or services.Angular comes with a collection of built-in filters, but it is easy to define your own as well.
The general syntax in templates is as follows:
{{ expression [| filter_name[:parameter_value] ... ] }}
$filter(name);
| Param | Type | Details |
|---|---|---|
| name | String | Name of the filter function to retrieve |
Function |
the filter function |
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https://code.angularjs.org/1.5.11/docs/api/ng/service/$filter