common utilities
http://docs.kissyui.com/5.0/api/modules/util.html
http://docs.kissyui.com/5.0/guides/util/index.html
var xutil = require('modulex-util');
console.log(xutil.clone([1,2]));https://github.com/kissyteam/util/milestones
npm install
npm start
then open http://localhost:8001/tests/runner.html