Grunt file and NPM package file for compressing and obfuscating JS13KB Game

Gruntfile.js

module.exports = function(grunt) {
  // Project configuration.
  grunt.initConfig({
    pkg: grunt.file.readJSON('package.json'),
    uglify: {
      options: {
        mangle: {
          toplevel: true,
          eval: true,
          keep_fnames: false,
          reserved: ["startGame"]
        }
      },
      build: {
        files: [{
          expand: false,
          src: 'assets/js/*.js',
          dest: 'dst/game.min.js',
          ext: '.min.js'
        }]
      }
    },
    watch: {
      files: ['assets/js/*.js'],
      tasks: ['uglify']
    }
  });

  grunt.loadNpmTasks('grunt-contrib-uglify-es');
  grunt.loadNpmTasks('grunt-contrib-watch');
  grunt.registerTask('default', ['uglify']);
};

package.json

{
  "name": "grunt-getting-started",
  "version": "0.1.0",
  "devDependencies": {
    "grunt": "~0.4.4",
    "grunt-contrib-uglify-es": "latest",
    "grunt-contrib-less": "latest",
    "grunt-contrib-cssmin": "latest",
    "grunt-contrib-watch": "latest"
  }
}