Use Grunt to pre-compile less and javascript files

Gruntfile.js

module.exports = function(grunt) {

  grunt.initConfig({
    less: {
      development: {
        options: {
          compress: true,
          yuicompress: true,
          optimization: 2
        },
        files: [
          {
            expand: true,             // Enable dynamic expansion.
            cwd: 'less/',             // Src matches are relative to this path.
            src: ['**/*.less', '!{variables,mixins}*.less'],
            dest: 'public/css/',      // Destination path prefix.
            ext: '.css'               // Dest filepaths will have this extension.
          }
        ]
      }
    },
    uglify: {
      my_target: {
        files: [{
          expand: true,
          cwd: 'views/',
          src: '**/*.js',
          dest: 'public/js'
        }]
      }
    },
    watch: {
      styles: {
        files: ['less/**/*.less'], // which files to watch
        tasks: ['newer:less'],
        options: {
          nospawn: true
        }
      },
      scripts:
      {
        files: ['views/**/*.js'],
        tasks: ['uglify'],
        options: {
          spawn: false,
        }
      }
    }

  });

  grunt.loadNpmTasks('grunt-contrib-less');
  grunt.loadNpmTasks('grunt-contrib-uglify');
  grunt.loadNpmTasks('grunt-contrib-watch');
  grunt.loadNpmTasks('grunt-newer');
  grunt.registerTask('default', ['watch']);

};