title: Data binding in React
body: <p>What I want to do is when I type some text in an input field, it should appear in another place realtime.</p>
  
  <p>Below is my input;</p>
  
  <pre class="lang-html prettyprint-override"><code>&lt;div className="post_input"&gt;
      &lt;input className='post_data_input_overlay' placeholder="Ask your question here" ref="postTxt"/&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>How can I achieve that?</p>