comment_form.jsx

<form class="commentForm" onSubmit={this.handleSubmit}>
  <input type="text" placeholder="Your name" ref="author" />
  <input
    type="text"
    placeholder="Say something..."
    ref="text"
  />
</form>

tutorial16.js

// tutorial16.js
var CommentForm = React.createClass({
  templateName: 'comment_form',
  handleSubmit: React.autoBind(function() {
    var author = this.refs.author.getDOMNode().value.trim();
    var text = this.refs.text.getDOMNode().value.trim();
    if (!text || !author) {
      return;
    }
    // TODO: send request to the server
    this.refs.author.getDOMNode().value = '';
    this.refs.text.getDOMNode().value = '';
  })
});