JS工厂模式

var page = page || {}; page.dom = page.dom || {}; //子函数1：处理文本 page.dom.Text = function () { this.insert = function (where) { var txt = document.createTextNode(this.url); where.appendChild(txt); }; }; //子函数2：处理链接 page.dom.Link = function () { this.insert = function (where) { var link = document.createElement('a'); link.href = this.url; link.appendChild(document.createTextNode(this.url)); where.appendChild(link); }; }; //子函数3：处理图片 page.dom.Image = function () { this.insert = function (where) { var im = document.createElement('img'); im.src = this.url; where.appendChild(im); }; };

工厂方法接口

page.dom.factory = function (type) { return new page.dom[type]; }
调用方式

var o = page.dom.factory('Link'); o.url = 'http://www.csdn.com'; o.insert(document.body);