用js表单 验证身份证号合法怎么写

Posted 2023-05-10

<script type="text/javascript">
//--身份证号码验证-支持新的带x身份证
function isIdCardNo(num)

var factorArr = new Array(7,9,10,5,8,4,2,1,6,3,7,9,10,5,8,4,2,1);
var error;
var varArray = new Array();
var intValue;
var lngProduct = 0;
var intCheckDigit;
var intStrLen = num.length;
var idNumber = num;
// initialize
if ((intStrLen != 15) && (intStrLen != 18))
//error = "输入身份证号码长度不对！";
//alert(error);
//frmAddUser.txtIDCard.focus();
return false;

// check and set value
for(i=0;i<intStrLen;i++)
varArray[i] = idNumber.charAt(i);
if ((varArray[i] < '0' || varArray[i] > '9') && (i != 17))
//error = "错误的身份证号码！.";
//alert(error);
//frmAddUser.txtIDCard.focus();
return false;
else if (i < 17)
varArray[i] = varArray[i]*factorArr[i];


if (intStrLen == 18)
//check date
var date8 = idNumber.substring(6,14);
if (checkDate(date8) == false)
//error = "身份证中日期信息不正确！.";
//alert(error);
return false;

// calculate the sum of the products
for(i=0;i<17;i++)
lngProduct = lngProduct + varArray[i];

// calculate the check digit
intCheckDigit = 12 - lngProduct % 11;
switch (intCheckDigit)
case 10:
intCheckDigit = 'X';
break;
case 11:
intCheckDigit = 0;
break;
case 12:
intCheckDigit = 1;
break;

// check last digit
if (varArray[17].toUpperCase() != intCheckDigit)
//error = "身份证效验位错误!...正确为： " + intCheckDigit + ".";
//alert(error);
return false;


else //length is 15
//check date
var date6 = idNumber.substring(6,12);
if (checkDate(date6) == false)
//alert("身份证日期信息有误！.");
return false;


//alert ("Correct.");
return true;

function checkDate(date)

return true;

function check()

idnum = document.getElementById('idcard').value;
alert(isIdCardNo(idnum));


</script> 参考技术A var reg = /(^\d15$)|(^\d18$)|(^\d17(\d|X|x)$)/;
if(reg.test(card) === false)

alert("身份证输入不合法");
return false;
参考技术B \d14[[0-9],0-9xX]
15或18位追问

比如身份证年月日验证怎么写

追答

var str="省份证数";

var year = str.substr(6,4);
var check=new RegExp("^[1-2][0-9]3$");

alert(check.test(year));

这是验证年份，后面的以此类推

js验证身份证号

<script>
    //身份证号合法性验证
    //支持18位身份证号
    //支持地址编码、出生日期、校验位验证
    function IdentityCodeValid(code) {
        var city = { 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 " };
        var tip = "";
        var pass = true;

        if (!code || !/^d{6}(18|19|20)?d{2}(0[1-9]|1[12])(0[1-9]|[12]d|3[01])d{3}(d|X)$/i.test(code)) {
            tip = "身份证号格式错误";
            pass = false;
        }

        if (!city[code.substr(0, 2)]) {
            tip = "地址编码错误";
            pass = false;
        }
        if (code.length == 18) {
            sBirthday = code.substr(6, 4) + "-" + Number(code.substr(10, 2)) + "-" + Number(code.substr(12, 2));
            var d = new Date(sBirthday.replace(/-/g, "/"))
            if (sBirthday != (d.getFullYear() + "-" + (d.getMonth() + 1) + "-" + d.getDate())) {
                //alert("非法生日");
                pass = false;
            }
        }
        //18位身份证需要验证最后一位校验位
        if (code.length == 18) {
            code = code.split(‘‘);
            //∑(ai×Wi)(mod 11)
            //加权因子
            var factor = [7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2];
            //校验位
            var parity = [1, 0, ‘X‘, 9, 8, 7, 6, 5, 4, 3, 2];
            var sum = 0;
            var ai = 0;
            var wi = 0;
            for (var i = 0; i < 17; i++) {
                ai = code[i];
                wi = factor[i];
                sum += ai * wi;
            }
            var last = parity[sum % 11];
            if (parity[sum % 11] != code[17]) {
                tip = "校验位错误";
                pass = false;
            }

        }
         return pass;
    }
    
    $(function () {
        document.write(IdentityCodeValid("410481199208156010"), "<br/>");
        document.write(IdentityCodeValid("340524198002300019"), "<br/>")
        document.write(IdentityCodeValid("340524197711111111"), "<br/>")
        document.write(IdentityCodeValid("34052419800101001x"), "<br/>");
    });

</script>