A Reference 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 firebase. database(). ref() or firebase.11 Mar 2021
Read moreHow do I create a ref in Firebase?
References are lightweight, so you can create as many as you need, and they are also reusable for multiple operations. To create a reference, get an instance of the Storage service using getStorage() then call ref() with the service as an argument . This reference points to the root of your Cloud Storage bucket.
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