This plugin helps to add async attribute to your desired JavaScript file from admin.
此插件有助于从admin向您所需的JavaScript文件添加异步属性。
“Add JavaScript attributes” helps to add async tag in that wordpress wp_enqueue_script() function but not to create.
“添加JavaScript属性”有助于在该wordpress wp_enqueue_script（）函数中添加异步标记，但不能创建。
