title: How to check if event click?
body: <p>This code to add tags by pressing enter (which):</p>
  
  <pre><code>Start.StartPostModal = TD.Views.Modal_Box.extend({
      events: {
          'keypress input#post_tags'  : 'onAddTags',
      },
  
      /**
       * add tags
       */
      addTags: function(tags) {
  
      },
  
      /**
       * catch event user enter in tax input
       */
      onAddTags: function(event) {
          var val = $(event.currentTarget).val();
          console.log('keypress');
          if (event.which == 13) {
              this.addTags(val);
          }
          return event.which != 13;
      }
  });
  </code></pre>
  
  <p>How can make it working by clicking a button? I add the event click and try many solutions but failed.</p>