var Hello = React.createClass({ getInitialState: function () { return { opacity: 1.0 }; },componentDidMount: function () { this.timer = setInterval(function () { var opacity = this.state.opacity; opacity -= .05; if (opacity < 0.1) { opacity = 1.0; } this.setState({ opacity: opacity }); }.bind(this),100); },render: function () { return (
