$body.hasClass(CLASS_NAME_NAVBAR_LG_FIXED) ||\n        $body.hasClass(CLASS_NAME_NAVBAR_XL_FIXED)\n    )\n  }\n\n  _isFooterFixed() {\n    const $body = $('body')\n    return (\n      $body.hasClass(CLASS_NAME_FOOTER_FIXED) ||\n        $body.hasClass(CLASS_NAME_FOOTER_SM_FIXED) ||\n        $body.hasClass(CLASS_NAME_FOOTER_MD_FIXED) ||\n        $body.hasClass(CLASS_NAME_FOOTER_LG_FIXED) ||\n        $body.hasClass(CLASS_NAME_FOOTER_XL_FIXED)\n    )\n  }\n\n  _fixScrollHeight() {\n    const $body = $('body')\n    const...

PLACEMENT_BOTTOM\n\n    // Handle dropup\n    if ($parentDropdown.hasClass(CLASS_NAME_DROPUP)) {\n      placement = $(this._menu).hasClass(CLASS_NAME_MENURIGHT) ?\n        PLACEMENT_TOPEND :\n        PLACEMENT_TOP\n    } else if ($parentDropdown.hasClass(CLASS_NAME_DROPRIGHT)) {\n      placement = PLACEMENT_RIGHT\n    } else if ($parentDropdown.hasClass(CLASS_NAME_DROPLEFT)) {\n      placement = PLACEMENT_LEFT\n    } else if ($(this._menu).hasClass(CLASS_NAME_MENURIGHT)) {\n      placement = PLACEMENT_BOTTOMEND\n...

Public\n\n  toggle() {\n    if (this._element.disabled || $(this._element).hasClass(ClassName.DISABLED)) {\n      return\n    }\n\n    const isActive = $(this._menu).hasClass(ClassName.SHOW)\n\n    Dropdown._clearMenus()\n\n    if (isActive) {\n      return\n    }\n\n    this.show(true)\n  }\n\n  show(usePopper = false) {\n    if (this._element.disabled || $(this._element).hasClass(ClassName.DISABLED) || $(this._menu).hasClass(ClassName.SHOW)) {\n      return\n    }\n\n    const relatedTarget = {\n...

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