http://perfectionkills.com/javascript-quiz/ [finished].
http://kourge.net/node/130 上题答案
http://zxhfighter.github.io/blog/javascript/2013/03/14/javascript-quiz.html
http://dmitry.baranovskiy.com/post/91403200
http://www.nczonline.net/blog/2010/01/26/answering-baranovskiys-javascript-quiz/
http://blog.csdn.net/kittyjie/article/details/8242121
初级前端面试题 http://wenku.baidu.com/link?url=KZ8izhq9UiKvcIouCgf55sSXvokA-cqsA2zrV83QD8EMkl6UGyQZeeXNhHQcbZLSa_iFxNGuzMi_nLlLq7P8OJxI6GIztR2fwyrZGZioCee
http://www.jb51.net/article/23127.htm
http://www.htmllion.com/javascriptquiz.html
http://zxhfighter.github.io/blog/javascript/2013/03/14/javascript-quiz.html
http://dmitrysoshnikov.com/ecmascript/the-quiz/
http://blog.lyuehh.com/javascript/2013/12/29/javascript-note-part3.html