gruntfile.js

module.exports = function (grunt) {
    //grunt wrapper function 
    grunt.initConfig({
        pkg: grunt.file.readJSON('package.json'),
        
        concat: {
            options: {
                // define a string to put between each file in the concatenated output
                separator: ';'
            },
            dist: {
                // the files to concatenate
                src: ['assets/js/*.js'],
                // the location of the resulting JS file
                dest: 'dist/app.js'
            }
        },

        uglify: {
            js: { //target
                src: ['dist/app.js'],
                dest: 'dist/app.min.js'
            }
        }
    });

    //load grunt tasks
    grunt.loadNpmTasks('grunt-contrib-concat');
    grunt.loadNpmTasks('grunt-contrib-uglify');

    //register grunt default task
    grunt.registerTask('default', ['concat', 'uglify']);


}