Sample grunt configuration files for processing sass and compressing javascripts

Gruntfile.js

module.exports = function(grunt) {
  grunt.initConfig({
      pkg: grunt.file.readJSON('package.json'),
      sass: {
          dist: {
              options: {
                style: 'compressed'
              },
              files: {
                  'css/app.css' : 'scss/app.scss'
              }
          }
      },
      uglify: {
          options: {
           mangle: true,
            compress: {
              drop_console: true
            }
          },
          my_target: {
              options: {
                  beautify: true
              },
              files: {
                  'js/build/production.min.js': []
              }
          }
      },
      watch: {
          css: {
              files: '**/*.scss',
              tasks: ['sass']
          },
          js: {
              files: 'js/*.js',
              tasks: ['uglify']
          },
          livereload: {
              files: ['*.html', '**/*.php', 'js/**/*.{js,json}', 'css/*.css','img/**/*.{png,jpg,jpeg,gif,webp,svg}'],
              options: {
                  livereload: true
              }
          }
      }
  });
  grunt.loadNpmTasks('grunt-livereload');
  grunt.loadNpmTasks('grunt-contrib-uglify');
  grunt.loadNpmTasks('grunt-contrib-sass');
  grunt.loadNpmTasks('grunt-contrib-watch');
  grunt.registerTask('default', [ 'watch' ]);
}

package.json

{
  "name": "any-project",
  "version": "0.0.1",
  "description": "grunt",
  "private": true,
  "devDependencies": {
    "grunt": "~0.4.5",
    "grunt-contrib-jshint": "~0.10.0",
    "grunt-contrib-nodeunit": "~0.3.3",
    "grunt-contrib-sass": "~0.7.3",
    "grunt-contrib-uglify": "~0.4.0",
    "grunt-contrib-watch": "~0.6.1",
    "grunt-livereload": "^0.1.3"
  }
}