[Home](./index.md) > [@firebase/database](./database.md) > [DataSnapshot](./database.datasnapshot.md) > [hasChild](./database.datasnapshot.haschild.md) ## DataSnapshot.hasChild() method Returns true if the specified child path has (non-null) data. Signature: ```typescript hasChild(path: string): boolean; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | path | string | A relative path to the location of a potential child. | Returns: boolean `true` if data exists at the specified child path; else `false`.