t.js

/**
  The `{{t}}` helper renders a localized string using `I18n.t`.

  ```handlebars
  {{t "app.hello_world"}}
  ```

  ```html
  Hello, World!
  ```

  To pass parameters to the localization function, simply
  specify them as parameters to the localization helper
  like you would to a `{{view}}` helper.

  ```handlebars
  {{t "app.ordinals" count=2}}
  ```

  ```html
  2nd
  ```

  If the localization string is generated via a bound value,
  you may generate your string by specifying the bound values
  using quasi-literal syntax:

  ```handlebars
  {{t "app.status.`currentStatus`"}}
  ```

  ```html
  Available
  ```

  @method t
  @for Em.Handlebars.helpers
  @param string  {String} The string to localize
  @param formats {Object} An object to format the string with.
  @return {String} HTML string
 */
Ember.Handlebars.registerTextHelper('t', function (text, context) {
  return I18n.t(text, context);
}, /`(.*?)`/g);