title: EmberJS 3.15 - How to pass data from child to parent
body: <p>what is the correct approach to pass data from child component to parent?</p>
  
  <p>( for example, you have a simple input-like component. You can pass data into the component from parents easily. User will change an input value and now you need to pass data from the component to its parent for some reasons ) </p>
  
  <p>how you can pass data from child to parent ? Thank you</p>