 helper 

These are meant to replace the {{action}}...">

<meta name="referrer" content="unsafe-url">

<!---->
<!---->
<!---->
<!---->
  <meta property="og:title" content="@action, {{on}} and {{fn}} - Octane Upgrade Guide - Ember Guides">

<!---->
  <meta property="og:description" content="Octane provides a set of new conventional APIs for creating and adding event handlers and actions to your components and templates: 

- The @action decorator
- The {{on}} modifier
- The {{fn}} helper 

These are meant to 