📜  if (!firebase.apps.length) { firebase.initializeApp({}); }else { firebase.app();如果已经初始化,使用那个 } - Javascript 代码示例

📅  最后修改于: 2022-03-11 15:03:27.683000             🧑  作者: Mango

代码示例1
if (!firebase.apps.length) {
   firebase.initializeApp({});
}else {
   firebase.app(); // if already initialized, use that one
}