Minify JavaScript and CSS with Grunt

grunt.initConfig({
    uglify: {
        dist: { files: { 'public/js/app.min.js': ['src/js/**/*.js'] } }
    },
    cssmin: {
        dist: { files: { 'public/css/app.min.css': ['src/css/*.css'] } }
    }
});

grunt.loadNpmTasks('grunt-contrib-uglify');
grunt.loadNpmTasks('grunt-contrib-cssmin');
grunt.registerTask('build', ['uglify', 'cssmin']);