示例有bug：使用actionScript没反应

    public function actionScript()
    {
        $warning = __('No data selected!');

        return <<<JS
    var key = {$this->getSelectedKeysScript()}
    console.log(key);
     Dcat.warning('{$warning}');
    Object.assign(data, {_key:key});
JS;
    }

选中几项，然后点击操作按钮，没反应
js代码应该放在function里面：

    protected function actionScript()
    {
        $warning = __('No data selected!');
        return <<<JS
            function (data, target, action) {
                var key = {$this->getSelectedKeysScript()}

                if (key.length === 0) {
                    Dcat.warning('{$warning}');
                    return ;
                }
                Object.assign(data, {_key:key});
                console.log(key.join('/'));
            }
JS;
    }