Node.js, MongoDB, and AngularJS Web Development

Using Filters

A great feature of AngularJS is the ability to implement filters. Filters are a type of provider that hooks into the expression parser and modifies the results of the expression for display in a view—for example to format time or currency values.

You implement filters inside expressions, using the following syntax:

{{ expression | filter}}

If you chain multiple filters together, they are executed in the order in which you specify them:

{{ expression | filter | filter }}

Some filters allow you to provide input in the form of function parameters. You add these parameters by using the following syntax:

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{{ expression | filter:parameter1:parameter2 }}

Also you can add filters, which are providers, to controllers ...