记录React JS TypeError: data.map is not a function

记录React JS TypeError: data.map is not a function

下面的代码报错TypeError: data.map is not a function

let nameList = data.map(item => item.name);

原因1：data不是数组

解决方法：将data转换为数组

let data = Array.from(data);

https://blog.csdn.net/weixin_44371012/article/details/89716413