react Warning: Each child in an array or iterator should have a unique "key" prop. Check the render
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出现错误情况:Warning: Each child in an array or iterator should have a unique "key" prop. Check the render method of `SubParent`. See https://fb.me/react-warning-keys for more information.
说明在遍历数组的时候,没有指定key,解决方法:
加上key属性,并赋值,如
<tr key={tweet.id}>
render:function(){ var listItems = this.state.tweets.map(function(tweet, index) { return ( <tr key={tweet.id}> <td>{tweet.id}{index}</td> <td>{tweet.pname}</td> <td>{tweet.name}</td> <td><a href="#" >修改</a></td> </tr> ); });}
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