ReactJS警告: Each child in an array or iterator should have a unique "key" prop

Question

    var divArr = [
       '<div>布吉岛啊</div>',
       '<div>呵呵呵</div>',
    ];
    ReactDOM.render(
       <div>{divArr}</div>,
       document.getElementById("example")
    );

但这是错误:

Warning: Each child in an array or iterator should have a unique "key" prop. Check the top-level render call using . See [warning-keys][1] for more information.

我不知道如何插入“ key ”

Answer 1

您需要将唯一键放入数组div中检查我的代码

var divArr = [
 '<div key='1'>布吉岛啊</div>',
 '<div key='2'>呵呵呵</div>',
];
ReactDOM.render(
   <div>{divArr}</div>,
   document.getElementById("example")
);