@ngdoc overview
@name Developer Guide: Templates: Filters: Using Angular Filters
@description

Filters can be part of any {@link api/ng.$rootScope.Scope} evaluation but are typically used to format
expressions in bindings in your templates:

        {{ expression | filter }}

Filters typically transform the data to a new data type, formatting the data in the process.
Filters can also be chained, and can take optional arguments.

You can chain filters using this syntax:

        {{ expression | filter1 | filter2 }}

You can also pass colon-delimited arguments to filters, for example, to display the number 123 with
2 decimal points:

        123 | number:2

Here are some examples that show values before and after applying different filters to an
expression in a binding:

* No filter: `{{1234.5678}}` => `1234.5678`
* Number filter: `{{1234.5678|number}}` => `1,234.57`. Notice the "," and rounding to two
significant digits.
* Filter with arguments: `{{1234.5678|number:5}}` => `1,234.56780`. Filters can take optional
arguments, separated by colons in a binding. For example, the "number" filter takes a number
argument that specifies how many digits to display to the right of the decimal point.


## Related Topics

* {@link dev_guide.templates.filters Understanding Angular Filters}
* {@link dev_guide.templates.filters.creating_filters Creating Angular Filters}

## Related API

* {@link api/ng.$filter Angular Filter API}
