Javascript 对象的比较
这个随笔其实是为了感谢清风笑给的一个提示，不仅仅是告诉我怎么判断数组，更让我有了认真读一读 《javascript权威指南》的想法。
比较和拷贝其实是一回事，代码如下：
//
//Compare object function
//
function Compare(fobj,sobj)
{
var ftype = typeof(fobj);
var stype = typeof(sobj);
if (ftype == stype)
{
if (ftype == "object")
{
if (fobj.constructor == Array && sobj.constructor == Array)//array
{
return CompareArray(fobj,sobj)
}
else if (fobj.constructor != Array && sobj.constructor != Array)//object
{
return CompareObject(fobj,sobj);
}
return false;
}
return fobj == sobj;
}
return false;
}
function CompareObject(fobj,sobj)
{
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//Textarea maxlength
//flag:text框名字，num:限制的字节数
function maxLen(flag,num){
if(document.getElementById('lastMessage').value=="0" || document.getElementById('lastMessage').value==flag){
var i=document.getElementById(flag).value.replace(/[\u0 ......
function getCookies(name)
{
var arr = document.cookie.match(new RegExp("(^| )"+name+"=([^;]*)(;|$)"));
if(arr != null) return unescape(arr[2]); return '';
}
function setCookie(name, value, expires,
function getCookies(name)
{
var a ......
Struts Validator Framework provides an easy-to-use mechanism for performing client-side validation. It's very useful to validate some fields on the client-side before sending the data to the server for processing. By this way we can ensure that the data send to the server is valid. Performing valida ......
function
Check_FileType(str)
{
var
pos
=
str.lastIndexOf(
"
.
"
);
var
lastname
=
str.substring(pos,str.length) //此处文件后缀名也可用数组方式获得str.split(".")
if
(lastname.toLowe ......
用一个正侧表达式在javascript中验证就是咯!
<script language='javascript'>
function chkMail(){
if(document.form1.email.value=''){
alert("请填写邮箱地址!");
document.form1.email.focus();
return false;
}
//开始验证
var email = document.form1.email.value;
var pattern = /^([a-zA-Z0-9_-]) ......
