写了一个验证相关的jquery插件
这次的项目中用了jquery这个javascript框架,项目中涉及验证表单的地方不少.网上也有一些有关表单验证的插件,看了看,感觉很复杂,不够灵活,于是自己试着写了一个这样的插件.代码如下:
/*
文件名:jquery.liu.string.js
功能说明:本js文件为jquery类库的一个插件,主要实现表单验证中的一些字符串处理功能.
作者:John Liu
编写日期:2007/12/26
*/
jQuery.extend({
//去除左边的空格
ltrim: function(_str)
{
return _str.replace(/(^\s*)/g, "");
},
//去除右边的空格
rtrim: function(_str)
{
return _str.replace(/(\s*$)/g, "");
},
//因为jquery本身已经有了trim方法,故这里不再重新定义
//计算字符串长度,一个双字节字符长度计2,ASCII字符计1
lengthw: function(_str)
{
return _str.replace(/[^\x00-\xff]/g,"rr").length;
},
//转换为大写
toUpper: function(_str)
{
return _str.toUpperCase();
},
//转换为小写
toLower: function(_str)
{
return _str.toLowerCase();
},
//15位身份证转换为18位,如果参数字符串中有非数字字符,则返回"#"表示参数不正确
idCardUpdate: function(_str)
{
var idCard18;
var regIDCard15 = /^(\d){15}$/;
if(regIDCard15.test(_str))
{
var nTemp = 0;
var ArrInt = new Array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2);
var ArrCh = new Array('1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2');
_str = _str.substr(0,6) + '1' + '9' + _str.substr(6,_str.length-6);
for(var i=0;i<_str.length;i++)
{
nTemp += parseInt(_str.substr(i,1)) * ArrInt[i];
}
_str += ArrCh[nTemp % 11];
idCard18 = _str;
}
else
{
idCard18 = "#";
}
return idCard18;
},
//是否为空字符串
isEmpty: function(_str)
{
var tmp_str = jQuery.trim(_str);
return tmp_str.length == 0;
},
isChinese: function(_str)
{
return /^[\u4E00-\u9FA5]{0,25}$/.test(_str);
},
//是否为合法电子邮件地址
isEmail: function(_str)
{
return /^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/.test(_str);
},
//是否合法url地址
isURL: function(_str)
{
var regTextUrl = /^(file|http|https|ftp|mms|telnet|news|wais|mailto):\/\/(.+)$/;
return regTextUrl.test(_str);
},
//是否为合法ip地址
isIpAddress: function(_str)
{
if (_str.length == 0)
return (false);
reVal = /^(\d{1}|\d{2}|[0-1]\d{2}|2[0-4]\d|25[0-5])\.(\d{1}|\d{2}|[0-1]\d{2}|2[0-4]\d|25[0-5])\.(\d{1}|\d{2}|[0-1]\d{2}|2[0-4]\d|25[0-5])\.(\d{1}|\d{2}|[0-1]\d{2}|2[0-4]\d|25[0-5])$/;
return (reVal.test (_str));
},
//是否邮政编码(中国)
isPostalCode: function(_str)
{
var regTextPost = /^(\d){6}$/;
return regTextPost.test(_str);
},
//是否是有效中国身份证
isIDCard: function(_str)
{
var iSum=0;
var info="";
var sId;
var aCity={11:"北京",12:"天津",13:"河北",14:"山西",15:"内蒙古",21:"辽宁",22:"吉林",23:"黑龙江",31:"上海",32:"江苏",33:"浙江",34:"安徽",35:"福建",36:"江西",37:"山东",41:"河南",42:"湖北",43:"湖南",44:"广东",45:"广西",46:"海南",50:"重庆",51:"四川",52:"贵州",53:"云南",54:"西藏",61:"陕西",62:"甘肃",63:"青海",64:"宁夏",65:"新疆",71:"台湾",81:"香港",82:"澳门",91:"国外"};
//如果输入的为15位数字,则先转换为18位身份证号
if(_str.length == 15)
sId = jQuery.idCardUpdate(_str);
else
sId = _str;
if(!/^\d{17}(\d|x)$/i.test(sId))
{
return false;
}
sId=sId.replace(/x$/i,"a");
//非法地区
if(aCity[parseInt(sId.substr(0,2))]==null)
{
return false;
}
var sBirthday=sId.substr(6,4)+"-"+Number(sId.substr(10,2))+"-"+Number(sId.substr(12,2));
var d=new Date(sBirthday.replace(/-/g,"/"))
//非法生日
if(sBirthday!=(d.getFullYear()+"-"+ (d.getMonth()+1) + "-" + d.getDate()))
{
return false;
}
for(var i = 17;i>=0;i--)
{
iSum += (Math.pow(2,i) % 11) * parseInt(sId.charAt(17 - i),11);
}
if(iSum%11!=1)
{
return false;
}
return true;
},
//是否有效的电话号码(中国)
isPhoneCall: function(_str)
{
return /(^[0-9]{3,4}\-[0-9]{3,8}$)|(^[0-9]{3,8}$)|(^\([0-9]{3,4}\)[0-9]{3,8}$)|(^[0-9]{3,4}[0-9]{3,8}$)|(^0{0,1}13[0-9]{9}$)/.test(_str);
},
//是否有效的手机号码(最新的手机号码段可以是15开头的
isMobile: function(_str)
{
return /^0{0,1}1(3|5)[0-9]{9}$/.test(_str);
},
//是否有效用户名,长度在6-50之间的,只包含字母,数字和下划线
isValidUserName: function(_str)
{
return /^\w{6,50}$/.test(_str);
},
//是否有效密码,长度在6-20之间
isValidPass: function(_str)
{
return /^\w{6,20}$/.test(_str);
}
});
在调用的时候要求先引入jquery.js文件,再引入这个jquery.liu.string.js.进行调用时可以如下方式调用(以判断是否有效手机号为例)
var mobile = $("#txtMobile").get(0);
if($.isMobile(mobile.value))
{
alert("0k");
}
else
{
alert("error");
}
我这里只是对一些常用的需要验证的功能写了对应的函数,根据需要还可以扩展或修改.
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