declarative html generation

list.js

var HelloMessage = React.createClass({
  render: function() {
    var generateList = function() {
    	return [1, 2, 4].map(function(i) { return <li>{i}</li> });
    };
    return (
    	<div>Hello {this.props.name}
          <ul>{generateList()}</ul>
    	</div>
    );
  }
});

React.render(<HelloMessage name="John" />, mountNode);