JavaScript

介紹

http://emn178.pixnet.net/blog/post/93978460-javascript%E6%95%99%E5%AD%B8---%E5%9F%BA%E6%9C%AC%E8%AA%9E%E6%B3%95%28syntax%29

https://developer.mozilla.org/zh-TW/docs/Learn/Getting_started_with_the_web/JavaScript_basics

this概念

https://blog.csdn.net/zyz1985/article/details/6828790