Gruntfile.js

let comment = "/**\n <%= pkg.name %>:<%= pkg.version %> \n Copyright 2017 <%= pkg.author %> \n Released Under The <%= pkg.license %> License\n <%= pkg.url %> \n */";
const uglifyConf = {
    options: {
      banner: comment
    },
    build: {
      src: "dist/bundle.js",
      dest: "dist/bundle.min.js"
    }
};

const webpackConf = {
    dist: require("./webpack.config.js")
};

module.exports = function(grunt) {
    require("load-grunt-tasks")(grunt);
    // Project configuration.
    grunt.initConfig({
            pkg         : grunt.file.readJSON("package.json"),
            webpack     : webpackConf,
            uglify      : uglifyConf
        });

    // Load the plugin that provides the "uglify" task.
    grunt.loadNpmTasks("grunt-contrib-uglify");
    //grunt typescript for transpiling typescript into javascript
    grunt.loadNpmTasks("grunt-webpack");
    // Default task(s).
    grunt.registerTask("default", ["webpack", "uglify"]);

};