{\n    this._config.onTabClick(item)\n  }\n\n  onTabChanged(item) {\n    this._config.onTabChanged(item)\n  }\n\n  onTabCreated(item) {\n    this._config.onTabCreated(item)\n  }\n\n  createTab(title, link, uniqueName, autoOpen) {\n    let tabId = `panel-${uniqueName}`\n    let navId = `tab-${uniqueName}`\n\n    if (this._config.allowDuplicates) {\n      tabId += `-${Math.floor(Math.random() * 1000)}`\n      navId += `-${Math.floor(Math.random() * 1000)}`\n    }\n\n    const newNavItem = `<li class=\"nav-item\"...

 this._setAttributeIfNotExists(outerElem, 'role', 'presentation')\n    }\n\n    if (!isActive) {\n      child.setAttribute('tabindex', '-1')\n    }\n\n    this._setAttributeIfNotExists(child, 'role', 'tab')\n\n    // set attributes to the related panel too\n    this._setInitialAttributesOnTargetPanel(child)\n  }\n\n  _setInitialAttributesOnTargetPanel(child) {\n    const target = SelectorEngine.getElementFromSelector(child)\n\n    if (!target) {\n      return\n    }\n\n    this._setAttributeIfNotExists(target,...