React相关知识和经验的碎片化记录

1、Warning: validateDOMNesting(...): Whitespace text nodes cannot appear as a child of . Make sure you don't have any extra whitespace between tags on each line of your source code.

<tbody>
	{arr? arr.map((obj,Index,arr) => 
		<tr key={Index.toString()}>
			<td>{arr[Index].Index+1}</td>			
			<td></td>
			<td></td>
		</tr>
	): ''}
</tbody>

应改为：

<tbody>
	{arr? arr.map((obj,Index,arr) => 
		<tr key={Index.toString()}>
			<td>{arr[Index].Index+1}</td>			
			<td></td>
			<td></td>
		</tr>
	): <tr></tr>}
</tbody>