1

preloader.jsx

var React = require('react'),
    scripts = require('./js/jsonld/scripts');
//var Main = require('./main');

var Preloader = React.createClass({
//
    propTypes: {
        data: React.PropTypes.array.isRequired,
        new: React.PropTypes.object.isRequired
    },

    componentWillMount(){
        this.checkNew();
    },

    checkNew: function() {

        if(this.props.new){
            this.setState({
                container : 'preloader-wrapper loading 1'
            });
        } else {
            this.setState({
                container: 'preloader-wrapper loaded switch 2 '
            });
        }

    },

    getInitialState: function() {
        return {container : 'preloader-wrapper loaded switch 3'};
    },

    componentDidMount: function() {
        var self = this;
        window.addEventListener('load ', self.changClass(), false);
    },

    changClass: function() {
        this.setState({
            container : 'preloader-wrapper loaded switch 4'
        });
    },

    render: function() {
        return (

        );
    }
});
<Main data={this.props.data} />
module.exports = Preloader;