JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://fb.me/react-with-addons-0.12.0.js"></script>
<script src="http://fb.me/JSXTransformer-0.12.0.js"></script>
<script src="http://fb.me/react-js-fiddle-integration.js"></script>

JavaScript 1.7

var ReplaceStateTest = React.createClass({
    getInitialState: function() {
        return {value: "test", updated: false};
    },
    
    componentWillReceiveProps: function(props) {
        this.replaceState(props);
    },
    
    render: function() {
        return (
            <div>
                <p>
                    this.state = {JSON.stringify(this.state)}
                </p>
                
                <p>
                    text input correctly clears the value:<br/>
                    <input type="text" value={this.state.value} />
                </p>
                
                <p>
                    textarea still shows old value<br/>
                    <textarea value={this.state.value} />
                </p>
            </div>
        );
    }
});

var component = React.render(<ReplaceStateTest />, document.body);
component.replaceProps({updated: true});