grunt example 1

grunt-exampl-1.js

====package.json==========
{
  "name": "app1",
  "version": "1.0.0",
  "devDependencies": {
    "grunt": "^1.0.1"
  }
}

======Gruntfile.js===================
module.exports = function(grunt) {

  // Project configuration.
  grunt.initConfig({
    pkg: grunt.file.readJSON('package.json'),
    concat: {
    options: {
      separator: ';',
    },
    dist: {
      src: ['js/*.js'],
      dest: 'dist/built.js',
    },
  }
  });

  // Load the plugin that provides the "uglify" task.
  grunt.loadNpmTasks('grunt-contrib-concat');

  // Default task(s).
  grunt.registerTask('default', ['concat']);

};