title: What is the different between the ref={callback} and the ref = "myInput" in react?
body: <blockquote>
    <p>as the link <a href="https://facebook.github.io/react/docs/more-about-refs.html#the-ref-callback-attribute" rel="noreferrer">https://facebook.github.io/react/docs/more-about-refs.html#the-ref-callback-attribute</a></p>
  </blockquote>
  
  <p>It then only gives an example of using the component immediately. I'm trying to find out how i would use this function to access the component immediately, and save the component for future use, as it says we are able to do.</p>