title: How to store a number in a ViewController and reuse it on another ViewController?
body: <p>i'm currently developing an app in which the user enters a number in an UIText field and I want to store that number and reuse it in another view controller example:</p>
  
  <p>FirstVC &lt;--- the user types the number on an UIText Field</p>
  
  <p>a Button is tapped on the FirstVC to take the user to a SecondVC</p>
  
  <p>SecondVC &lt;-- the number can be called and can be displayed on a label</p>
  
  <p>Can someone explain me how to store the number and then call it and display it later?</p>