## .relativeTimeFormatter( unit [, options] ) ➜ function( value )

Returns a function that formats a relative time according to the given unit, options, and the default/instance locale.

The returned function is invoked with one argument: the number `value` to be formatted.

### Parameters

#### unit

String value indicating the unit to be formatted. eg. "day", "week", "month", etc.

#### options.form

String, e.g., `"short"` or `"narrow"`, or falsy for default long form.

#### value

The number to be formatted.


### Example

Prior to using any relative time methods, you must load `cldr/main/{locale}/dateFields.json` and the CLDR content required by the number and plural modules. Read [CLDR content][] if you need more information.

[CLDR content]: ../../../README.md#2-cldr-content

You can use the static method `Globalize.relativeTimeFormatter()`, which uses the default locale.

```javascript
var formatter;

Globalize.locale( "en" );
formatter = Globalize.relativeTimeFormatter( "month" );

formatter( 1 );
// > "next month"

formatter( 3 );
// > "in 3 months"

formatter( -1 );
// > "last month"

formatter( -3 );
// > "3 months ago"
```

You can use the instance method `.relativeTimeFormatter()`, which uses the instance locale.

```javascript
var globalize = new Globalize( "en" ),
	formatter = globalize.relativeTimeFormatter( "week" );

formatter( 1 );
// > "next week"
```