0
我有一个JSON数组这样.MAP功能不工作
"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"
}
]
} ]
想显示,作为一个表以用于每个连接设置的密码。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>
)
}
这里如果条件> 1连接没有返回任何东西。第三个条件== 1正在返回行。
帮助我理解我在做什么错。提前致谢。
您没有对阵列节点[i] .connections.length> 1 –
的索引已经在外侧使用map函数,因此不需要节点[i],因为它在任何时候都只有一个项目。 –
'this.state.all'代表什么? –