avoid mutating a prop directly since the value will be overwritten whenever完美解决
在vue父组件传递数据给子组件时候,通过双向绑定给属性赋值时候,报错如下:Avoid mutating a prop directly since the value will be overwritten whenever the parent component re-renders. Instead, use a data or computed property based on the prop's value. Prop being mutated: "content"
(图片来源网络,侵删)
1、报错详情
[Vue warn]: Avoid mutating a prop directly since the value will be overwritten whenever the parent component re-renders. Instead, use a data or computed property based on the prop's value. Prop being mutated: "items_index"
2、错误原因
改动了子组件中引用的父组件的变量,也就是props中的数据
在Vue2中组件props中的数据只能单向流动,即只能从父组件通过组件的DOM属性attribute传递props给子组件,子组件只能被动接收父组件传递过来的数据,并且在子组件中,不能修改由父组件传来的props数据。
3、解决方案avoid mutating a prop directly since the value will be overwritten whenever
不要直接修改从父组件传过
(图片来源网络,侵删)
(图片来源网络,侵删)
文章版权声明:除非注明,否则均为主机测评原创文章,转载或复制请以超链接形式并注明出处。
还没有评论,来说两句吧...