code: function getEventSelectorsForRadioGroups () {
        var radioGroups = []
  
        // Build an array of radio group selectors
        return $(selectors.radio).map(function () {
          var groupName = $(this).attr('name')
  
          if ($.inArray(groupName, radioGroups) === -1) {
            radioGroups.push(groupName)
            return 'input[type="radio"][name="' + $(this).attr('name') + '"]'
          }
          return null
        })
      }
docs: Get event selectors for all radio groups