这是React不能识别dom元素上的非标准attribute报出的警告,最终的渲染结果中React会移除这些非标准的attribute。html
一般{...this.props}和cloneElement(element, this.props)这两种写法,会将父级别无用的attribute传递到子级的dom元素上。react
例如:dom
function MyDiv(props) { if (props.layout === 'horizontal') { // BAD! Because you know for sure "layout" is not a prop that <div> understands. return <div {...props} style={getHorizontalStyle()} /> } else { // BAD! Because you know for sure "layout" is not a prop that <div> understands. return <div {...props} style={getVerticalStyle()} /> } }
能够使用rest参数接收,删除等方法来解决:this
const { layout, ...rest } = props //或者 const divProps = Object.assign({}, props); delete divProps.layout;
具体可参考:React官方文档 Unknown Prop Warningurl