Grunt JS Minify Example

gruntfile.js

module.exports = function(grunt){
    grunt.initConfig({
        pkg: grunt.file.readJSON('package.json'),
        
        uglify: {
            options: {
                manage: false
            },
            my_target: {
                files: [{
                    expand: true,
                    cwd: 'js/',
                    src: ['**/*.js', '!*.min.js'],
                    dest: 'js/',
                    ext:'.min.js'
                }],
            }
        }
    });
    
    grunt.loadNpmTasks('grunt-contrib-uglify');
}; 

gruntfile_uglify.js

/*
This is to show an example only of a gruntfile.js code to minify and combile multiple JS in a single .js file.
*/
module.exports = function(grunt){
    grunt.initConfig({
        pkg: grunt.file.readJSON('package.json'),
        
        uglify: {
            options: {
                manage: false
            },
            my_target: {
                files: {
                    'js/main.min.js': ['js/index1.js', 'js/index2.js']
                },
            }
        }
    });
    
    grunt.loadNpmTasks('grunt-contrib-uglify');
}; 

package.js

{
  "name": "grunt",
  "version": "1.0.0",
  "devDependencies": {
    "grunt-contrib-uglify": "^0.9.2"
  }
}