products.js

(function() {
    var app = angular.module('store-products', []);

    app.directive('productTitle', function(){
        ...
    });

    app.directive('productGalery', function(){
        ...
    });

    app.directive('productBuyButton', function(){
        ...
    });

    app.directive('productPanels', function(){
        ...
    });

})();