title: How can I unbind an eventhandler from Marionette in another js file?
body: <p>This is my file file1.js</p>
  <pre><code>//more code
  
  Test.Views.TestTab = Marionette.Layout.extend({
    template: JST[&quot;templates/test/myfile&quot;],
    className: &quot;activity-contents&quot;,
    events: {
      &quot;focus textarea&quot; : &quot;event2&quot;
    }
    //more code
  
    event2: function(event) {
      alert(&quot;test&quot;);
     //do something
    },
    //more code
  });
  //more code
  </code></pre>
  <p>In another file I need to do something different with the focus event in textarea, but the alert always happened, I can't change the code in file1.js, In file2.js a file without Marionette, only with Jquery I tried with the following options, but this failed, any idea?</p>
  <pre><code> jQuery('textarea').off('focus');
   jQuery('textarea').off();
   jQuery('textarea').unbind('focus');
   jQuery('textarea').unbind();
  </code></pre>