摘要：
1. 请问一份标准的 HTML 文档有哪几个必须的 HTML 标签？The elements which every document must have are:<html>,<head>,<title>.2.Javascript中为Array对象添加一个去掉重复项的方法？YUI版本var toObject = function(a) { var o = {}; for (var i = 0; i < a.length; i = i+1) { o[a[i]] = true; } return o;};var keys = function(o) { 阅读全文
