PortableNode_Gruntfile.js

module.exports = function(grunt) {
    // run it wit grunt stoyan in the root of the project
    grunt.registerTask('stoyan', function(){
        console.log('Hello World from grunt!');
    });

    // grunt speak
    grunt.registerTask('speak', function(){
        console.log('I am speaking!');
    });

    // grunt both
    grunt.registerTask('both', ['stoyan', 'speak']);

    // grunt
    grunt.registerTask('default', ['stoyan', 'speak']);

    // in order to run concat you will need to run npm
    // npm install grunt-contrib-concat --save-dev

/* https://github.com/gruntjs/grunt-contrib-concat
    // Project configuration.
    grunt.initConfig({
      concat: {
        options: {
          separator: ';',
        },
        dist: {
          src: ['src/intro.js', 'src/project.js', 'src/outro.js'],
          dest: 'dist/built.js',
        },
      },
    });
*/
    // Project configuration.
    grunt.initConfig({
      pkg: grunt.file.readJSON('package.json'), // you can use the pkg object
      concat: {
        options: {
          stripBanners: true,
          banner: '/*! <%= pkg.name %> - v<%= pkg.version %> - ' +
            '<%= grunt.template.today("yyyy-mm-dd") %> */',
        },
        dist: { // run with -> grunt concat:dist
          src: ['src/project.js'],
          dest: 'dist/built.js',
        },
        happy: { // run with -> grunt concat:happy
          src: ['src/project.js'],
          dest: 'build/scripts.js',
        },
        js: { // run with -> grunt concat:dist
          src: ['src/js/main.js'],
          dest: 'build/js/scripts.js',
        },
        css: { // run with -> grunt concat:happy
          src: ['src/css/style.js'],
          dest: 'build/css/styles.js',
        },
      },

      watch: {
          js: {
            // files: '**/*.js',
            files: 'src/**/*.js',
            // tasks: ['jshint'],
            tasks: ['concat:js'], // whatever happens in the js files run concat
            options: {
              interrupt: true,
            },
          },
          css: {
            // files: '**/*.js',
            files: 'src/**/*.css',
            // tasks: ['jshint'],
            tasks: ['concat'], // whatever happens in the js files run concat
            options: {
              interrupt: true,
            },
          },
        },
    });

    // Run this task with the grunt concat command
    grunt.loadNpmTasks('grunt-contrib-concat');
    // grunt watch
    grunt.loadNpmTasks('grunt-contrib-watch');
    // https://github.com/gruntjs/grunt-contrib-connect - very interstung as well
    // https://www.npmjs.com/package/grunt-contrib-uglify

    // grunt.registerTask('default', ['concat', 'watch']);
};