Bind data elements

- [Voiceover] I'm starting out in a basic…single-view project with just a text field and a button,…and a tap gesture recognizer added to the storyboard scene.…These are also wired up as IB outlets…in the view controller.…I've also created a dispose bag instance…and used tap gesture recognizers, rx_event,…to dismiss the keyboard when a tap is recognized,…as I did in the Bind UI Elements example project.…So let's say that I want to bind the text…from the text field to a variable.…A variable might be a good choice here if, for example,…I want observers to that variable to receive…the latest value or the initial value.…

In this case, an empty string upon subscription.…So first I'll create a variable property…with an empty string as the initial value.…Now I'll bind the text fields, rx text control property…to the text field text variable.…You may be wondering why I didn't use Driver here.…I primarily use Driver one way: to drive UI elements.…So while I might use Driver to drive a label with…the next element emitted from a variable,…