gistfile1.js

var ProductSearch = React.createClass({

    filterList: function(event){
        //debugger;
        var updatedProducts = this.state.initialProducts;
        updatedProducts = updatedProducts.filter(function(item){
            return item.name.toLowerCase().search(event.target.value.toLowerCase()) !== -1;
        });
        this.setState({filteredProducts: updatedProducts});
    },
)};