A DatabaseReference represents a specific location in your Database and can be used for reading or writing data to that Database location.
You can reference the root or child location in your Database by calling ref() or ref("child/path").
Writing is done with the set() method and reading can be done with the on*() method. See https://firebase.google.com/docs/database/web/read-and-write
Signature:
export declare interface DatabaseReference extends Query
Extends: Query
Properties
| Property | Type | Description |
|---|---|---|
| key | string | null | The last part of the DatabaseReference's path.For example, "ada" is the key for https://<DATABASE_NAME>.firebaseio.com/users/ada.The key of a root DatabaseReference is null. |
| parent | DatabaseReference | null | The parent location of a DatabaseReference.The parent of a root DatabaseReference is null. |
| root | DatabaseReference | The root DatabaseReference of the Database. |
DatabaseReference.key
The last part of the DatabaseReference's path.
For example, "ada" is the key for https://<DATABASE_NAME>.firebaseio.com/users/ada.
The key of a root DatabaseReference is null.
Signature:
readonly key: string | null;
DatabaseReference.parent
The parent location of a DatabaseReference.
The parent of a root DatabaseReference is null.
Signature:
readonly parent: DatabaseReference | null;
DatabaseReference.root
The root DatabaseReference of the Database.
Signature:
readonly root: DatabaseReference;
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