The data property “xxx“ is already declared as a prop. Use prop default value instead.

时间 2021-07-10

标签 vuejs 繁體版

原文原文链接

在写父组件子组件相互传递数据的时候，出现The data property "num" is already declared as a prop. Use prop default value instead. 这里意思是这个data的属性num已经在prop声明了，使用prop默认的值替代。因为num我在父组件已经创建声明后面又在子组件的data声明和初始化，造成冲突。所以报这个错，然后需要

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1. The data property "num" is already declared as a prop. Use prop default value instead.
2. Avoid mutating a prop directly since the value will be overwritten whenever the parent component re-
3. use a data or computed property based on the prop's value.
4. React.PropTypes is deprecated since React 15.5.0, use the npm module prop-types instead react/no-de
5. 三、vue报错use a data or computed property based on the prop's value.
6. Type of the default value for 'songs' prop must be a function
7. Type of the default value for 'data' prop must be a function的解决方法
8. 报错 [Vue warn]: Avoid mutating a prop directly since the value will be overwritte
9. [Vue warn]: Avoid mutating a prop directly since the value will be overwritten
10. Vue avoid mutating a prop directly since the value will be overwritten
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1. The data property "num" is already declared as a prop. Use prop default value instead.
2. Avoid mutating a prop directly since the value will be overwritten whenever the parent component re-
3. use a data or computed property based on the prop's value.
4. React.PropTypes is deprecated since React 15.5.0, use the npm module prop-types instead react/no-de
5. 三、vue报错use a data or computed property based on the prop's value.
6. Type of the default value for 'songs' prop must be a function
7. Type of the default value for 'data' prop must be a function的解决方法
8. 报错 [Vue warn]: Avoid mutating a prop directly since the value will be overwritte
9. [Vue warn]: Avoid mutating a prop directly since the value will be overwritten
10. Vue avoid mutating a prop directly since the value will be overwritten

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