我有像这样的JSON数组
"Nodes": [
{
"Name": "abc",
"ID": "123",
"type": "xyz",
"connections": [
{
"ipAddress": "1.1.2.2",
"username": "name",
"type": "mno"
},
{
"ipAddress": "1.1.2.3",
"username": "name2",
"type": "mno2"
}
]
},
{
"Name": "abc2",
"ID": "124",
"type": "xyz2",
"connections": [
{
"ipAddress": "1.1.2.4",
"username": "name3",
"type": "mno3"
}
]
} ]
我正在尝试将其显示为一个表来为每个连接设置密码。我的代码如下所示。
_passwordManagement: function() {
return (
<Table>
<thead>
<tr>
<th>
IP Address
</th>
<th>
User Name
</th>
<th>
Password
</th>
<th>
Re-Enter Password
</th>
<th>
</th>
</tr>
</thead>
<tbody>
{this.state.all.map(function(nodes, i) {
if (nodes.connections.length == 0){
console.log("This has no node");
} else if (nodes.connections.length > 1) {
{nodes.connections.map(function(conn) {
return(
<TableRow>
<td>
{conn.ip}
</td>
<td>
{conn.username}
</td>
<td className='secondary'>
<TextInput type="password" placeHolder="*****" className="passwordInput"/>
</td>
<td className='secondary'>
<TextInput type="password" placeHolder="*****" className="passwordInput"/>
</td>
<td className='secondary'>
<Button label='Set Password' className="tableButton" />
</td>
</TableRow>
);
}, this)
}
} else if (nodes.connections.length == 1) {
return(
<TableRow key={i}>
<td>
{nodes.connections[0].ip}
</td>
<td>
{nodes.connections[0].username}
</td>
<td className='secondary'>
<TextInput type="password" placeHolder="*****" className="passwordInput"/>
</td>
<td className='secondary'>
<TextInput type="password" placeHolder="*****" className="passwordInput"/>
</td>
<td className='secondary'>
<Button label='Set Password' className="tableButton" />
</td>
</TableRow>
);
}
}, this)}
</tbody>
</Table>
)
}
如果带有&gt; 1个连接的条件没有返回任何内容。第三个条件== 1正在返回行。
帮助我理解我在做什么。提前谢谢。
答案 0 :(得分:0)
在第二种情况下,您没有为外部地图功能返回任何内容。仅返回内部地图功能。在第三个条件下有回归,这就是它工作的原因。