Firebase Ep.5: Deleting data from Realtime Database (Xcode 9 Swift 4 iOS 11)

Today will be talking about something about deleting data from the Firebase Realtime Database. It is very simple to delete data with just one line of code, however when it comes to getting the key to delete the data, we can use query or in my case you can get all the keys, put it in the array and use the indexPath.row to determine the record identifier from the record that needs to be deleted.

Related documentation you can refer to if you're stuck:
https://firebase.google.com/docs/database/ios/read-and-write
https://firebase.google.com/docs/database/ios/lists-of-data

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