Reactでinputを扱う ref: https://qiita.com/takaki@github/items/8125535791b1bab8c85a

file0.js

var React = require('react');
var ReactDOM = require('react-dom');

var App = React.createClass({
    render: function() {
        return (
            <div>
                <label>value a</label>
                <input type="radio" name="aradio" value="A" checked="checked" /> <br />
                <label>value b</label>
                <input type="radio" name="aradio" value="B" />
                <hr />
                <label>text input</label>
                <input type="text" name="atext" value="" />
            </div>
        )
    }
});

file1.js

var App = React.createClass({
    getInitialState: function() {
        return {
            radio: "a",
            text: ""
        }
    },
    render: function() {
        return (
            <div>
                <label>value a</label>
                <input type="radio" name="aradio" value="A" checked={this.state.radio === 'a'}
                       onChange={() => this.setState({radio: 'a'})}/> <br />
                <label>value b</label>
                <input type="radio" name="aradio" value="B" checked={this.state.radio === 'b'}
                       onChange={() => this.setState({radio: 'b'})}/> 
                <hr />
                <label>text input</label>
                <input type="text" name="atext" value={this.state.text}
                       onChange={(e) => this.setState({text: e.target.value})}/>
            </div>
        )
    }
});