以编程方式在Firebase Realtime数据库中创建新路径? [英] Create new path in Firebase Realtime Database programmatically?
问题描述
在Firebase文档中,我没有找到答案.如何在Javascript中以编程方式在实时数据库中添加新路径?像(只是一个例子):
In Firebase documentation I don't found the anweser. How to add a new path in real-time database programmatically in Javascript? Like (just an example):
标准路径: https://testapp.firebaseio.com/
在应用程序中,我想说些类似的话:如果是这样,请创建一个类似这样的路径: https://testapp.firebaseio.com/info/important/personal
And in the app I want to say something like: If this, then create a path like this: https://testapp.firebaseio.com/info/important/personal
推荐答案
将值写入Firebase数据库时,会自动在其中创建键和路径.因此,要生成路径info/important/personal
,您需要在其下写一个值.例如:
Keys and paths in the Firebase Database are automatically created when you write a value to them. So to generate the path info/important/personal
, you would write a value under it. For example:
firebase.database().ref('info/important/personal').set(true);
这将生成以下JSON:
This will generate the following JSON:
{
"info": {
"important": {
"personal": true
}
}
}
请注意,相反情况也是如此:Firebase会自动删除空键/路径.因此,如果您删除上面的true
,则整个JSON将被删除.
Note that the inverse is also true: Firebase will automatically remove empty keys/paths. So if you delete the true
above, the entire JSON will be deleted.
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