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The data for our app will be stored at this database reference: Let's start by saving some user data.
We'll store each user by a unique username, and we'll also store their full name and date of birth.
In the vast majority of cases, binding data to other elements should use property bindings, where changes are propagated by setting the new value to the Java Script property on the element.
To bind to a target property, specify the attribute name that corresponds to the property, with an annotation or compound binding as the attribute value: Property names are specified in attribute format, as described in Property name to attribute name mapping.The basic database write operation is a set which saves new data to the specified database reference, replacing any existing data at that path.To understand set, we'll build a simple blogging app.You can also save data directly to a child location: .The Firebase Realtime Database also supports multi-path updates.