Drupal JS behaviors: Bueditor: Adding toolbar to ajax added textfields (otherwise they are missing)

paragraphsBUEditor.behaviors.js

(function($, BUE) {
  'use strict';

  // Don't setup the behavior on pages without BUEditor.
  if (typeof BUE ==='undefined') {
    return;
  }

  /**
   * New behavior to handle BUEditors text areas added dynamically
   * by paragraphs.
   * @type {{attach: Drupal.behaviors.paragraphsBUEditor.attach}}
   */
  Drupal.behaviors.paragraphsBUEditor = {
    attach: function(context, settings) {
      /*
       * e followed by the id of the editor to use based on
       * /en/admin/config/content/bueditor
       */
      var EDITOR_ID = 'e5';

      $.each(
        $('.field-type-paragraphs .field-widget-text-textarea textarea'),
        function(i, T) {
          BUE.processTextarea(T, EDITOR_ID);
        }
      );

    }
  };
})(jQuery, window.BUE);