const angular = require('angular');
const ngModule = angular.module('Gallery', []);

require('./directives')(ngModule);

export default ngModule => {
require('./header/header.js')(ngModule)
};

module.exports = function (ngModule) { ... }

"devDependencies": {
"angular": "^1.6.3",
"babel-cli": "^6.24.0",
"babel-core": "^6.24.0",
"babel-loader": "^6.4.1",
"babel-preset-es2015": "^6.24.0",
"webpack": "^2.3.2",
"webpack-dev-server": "^2.4.2"
},

module: {
    rules: [
        {
            test: /.js$/,
            use: [{
                loader: "babel-loader",
                options: {
                    "presets": [
                        ["es2015", {"modules": false}]
                    ]
                }
            }],
        },


    ],
},

options: {
      presets: [
        'es2015'
      ]
    }

Uncaught TypeError: __webpack_require__(...) is not a function