title: React Formik get form state's values
body: <p>I have a form with two fields name and age. I know when user fill these two fields and hit the submit button I can get the values for these two fields.</p>
  <p>But what I want is, I have a button call <strong>show filled values</strong>. When your press that button I want to see the user-filled values in the form. For example, if he fills name as 'Tom' and age as 85. I want to see that. But right now what I am getting is the empty initial values object.</p>
  <p><a href="http://show%20filled%20values" rel="nofollow noreferrer">My Code</a></p>
  <p>How do I achieve this using Reactjs?</p>