behave.js

/**
 * Example of Behave JS with public and private functions,
 * using flexible private function to process results. Shown
 * here firing on page load and AJAX submits.
 */

(function ($) {
  // Note {only: false} allows AJAX context rather than ready.
  var behave = Drupal.behave('myBehavior', {only: false}),
      behavior = behave.behavior();

  /**
   * Available as: Drupal.behaviors.myBehavior.myPublicFunction()
   */
  behavior.myPublicFunction = function (callback) {
    var data;
    callback(data);
  };

  /**
   * Private function.
   */
  function myPrivateFunction (data) {
    console.log(data);
  }

  /**
   * Implements Drupal behavior.
   */
  behave.attach(function (context, settings, $) {
    // Fire public function providing internal data process function.
    // "Mark the registered events."
    behavior.myPublicFunction(myPrivateFunction);
  });

})(jQuery);