What is ref in Firebase?

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

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What is Firebase built on?

Firebase is a Backend-as-a-Service (Baas). It provides developers with a variety of tools and services to help them develop quality apps, grow their user base, and earn profit. It is built on Google’s infrastructure . Firebase is categorized as a NoSQL database program, which stores data in JSON-like documents.

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