What is push () in Firebase?

push. Add to a list of data in the database . Every time you push a new node onto a list, your database generates a unique key, like messages/users/<unique-user-id>/<username> transaction. Use transactions when working with complex data that could be corrupted by concurrent updates.

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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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