Gruntfile with Concat, Uglify, Watch, & Jade

module.exports = function(grunt) {
  grunt.initConfig({
    
    concat: {
      options: {
        separator: ';'
      },
      dist: {
        src: ['js/jquery.js', 'js/pin.js', 'js/animation.js'],
        dest: 'js/script.js'
      }
    },

    uglify: {
      js: {
        files: {
          'js/script.js': ['js/script.js']
        }
      }
    },

    watch: {
      scripts: {
        files: ['js/*.js'],
        tasks: ['concat', 'uglify', 'jade']
      }
    },

    jade: {
      compile: {
        options: {
          debug: false
        },
        files: {
          'index.html': ['index.jade']
        }
      }
    }

  });

  grunt.loadNpmTasks('grunt-contrib-concat');
  grunt.loadNpmTasks('grunt-contrib-uglify');
  grunt.loadNpmTasks('grunt-contrib-watch');
  grunt.loadNpmTasks('grunt-contrib-jade');

  grunt.registerTask('default', ['concat', 'uglify', 'jade']);
}