title: React.findDOMNode is not a function?
body: <p>Recently i am working on react.js crud application i like to use react.findDomNode for create record </p>
  
  <pre><code>handleSubmit: function(e) {
          e.preventDefault();
          name = React.findDOMNode(this.refs.name).value.trim();
          email = React.findDOMNode(this.refs.email).value.trim();
          address = React.findDOMNode(this.refs.address).value.trim();
          state = React.findDOMNode(this.refs.state).value.trim();
          zip = React.findDOMNode(this.refs.zip).value.trim();
          city = React.findDOMNode(this.refs.city).value.trim();
  </code></pre>
  
  <p>but i face following error how can i reslove it i also use </p>
  
  <blockquote>
    <p>ReactDOM.findDOMNode
    But still have same error 
    <a href="https://i.stack.imgur.com/BDwFa.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/BDwFa.png" alt="enter image description here"></a></p>
  </blockquote>