react.jsx

 var NewInput = React.createClass() {
   getInitialState: function() {
      return {
        value: 'Hello!',
        othervalue: this.props.othervalue
      };
    },
    handleChange: function(event) {
    
      this.setState({value: event.target.value});
    },
    render: function() {
      var value = this.state.value;
      return <div>
        <span>{this.props.othervalue}</span>
        <input type="text" value={value} onChange={this.handleChange} />
      </div>
    }
  }

  var OtherInput = React.createClass() {
    render: function() {
      <NewInput othervalue={'something'}> /* NewInput.new(othervalue: 'something') */
    }
  }