📌  相关文章
📜  filesnapshot.get("icon").toString()" 显示空指针异常,"在空对象引用上" - 无论代码示例

📅  最后修改于: 2022-03-11 14:57:42.531000             🧑  作者: Mango

代码示例1
document.get("icon").toString() " is showing a null pointer exception,  "on a null object reference"