replace the {{action}}...">

  <meta property="og:type" content="website">

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<meta name="twitter:card" content="summary">

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

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  <meta name="twitter: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 