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[Vue warn]: Error in callback for watcher “fileList“: “TypeError: Cannot create property ‘uid‘ on st

[Vue warn]: Error in callback for watcher "fileList": "TypeError: Cannot create property 'uid' on string

[Vue warn]: Error in callback for watcher “fileList“: “TypeError: Cannot create property ‘uid‘ on st_错误代码

报错原因:
TypeError: Cannot create property ‘xxx’ on string ‘xxxx’,此类错误是赋值的类型错误
如以上示例错误,在使用ElementUI的upload组件时,把字符串列表赋值给了
fileList
,而
fileList
需求的是对象的列表


示例错误代码:

pictureList = ['url1', 'url2'];
this.fileList = pictureList;


示例正确代码:

pictureList = ['url1', 'url2'];
this.fileList = pictureList.map(item => {
return {
name: item,
url: item
}
});




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