代码组织
组织好javascript代码来避免命名冲突，将相关函数干净地分组在一起
效仿在java、c#中使用的包系统——创建一个新类，然后将所有的工具函数作为那个类的成员
<!DOCTYPE html> <html> <head> <meta charset="UTF-8" /> <title>组织代码——伪包完整例子</title> <script> jscript = function(){}; jscript.ui = function(){}; jscript.ui.alerts = new function(){}; jscript.ui.alerts.showErrorAlert = function(){ alert("An error occurred"); }; jscript.ui.alerts.MessageDisplayer = function(inMsg){ this.msg = inMsg; this.toString = function(){ return "msg = " + this.msg; } }; function test(){ jscript.ui.alerts.showErrorAlert(); var v = new jscript.ui.alerts.MessageDisplayer("Hello!"); alert(v); } </script> </head> <body> <input type="button" onclick="test()"; value="click me!" /> </body> </html>