//1 城市代码列表
var aIdentityCode_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 "
}
//2 检查号码是否符合规范，包括长度，类型
function IdentityCode_isCardNo(card) {
//身份证号码为15位或者18位，15位时全为数字，18位前17位为数字，最后一位是校验位，可能为数字或字符X
var reg = /(^\d{15}$)|(^\d{17}(\d|X)$)/;
if (reg.test(card) === false) {
return false;
}
return true;
}
//3 取身份证前两位，校验省份
function IdentityCode_checkProvince(card) {
var province = card.substr(0, 2);
if (aIdentityCode_City[province] == undefined) {
return false;
}
return true;
}
//4 检查生日是否正确，15位以'19'年份来进行补齐
function IdentityCode_checkBirthday(card) {
var len = card.length;
//身份证15位时，次序为省（3位）市（3位）年（2位）月（2位）日（2位）校验位（3位），皆为数字
if (len == '15') {
var re_fifteen = /^(\d{6})(\d{2})(\d{2})(\d{2})(\d{3})$/;
var arr_data = card.match(re_fifteen); // 正则取号码内所含出年月日数据
var year = arr_data[2];
var month = arr_data[3];
var day = arr_data[4];
var birthday = new Date('19' + year + '/' + month + '/' + day);
return IdentityCode_verifyBirthday('19' + year, month, day, birthday);
}
//身份证18位时，次序为省（3位）市（3位）年（4位）月（2位）日（2位）校验位（4位），校验位末尾可能为X
if (len == '18') {
var re_eighteen = /^(\d{6})(\d{4})(\d{2})(\d{2})(\d{3})([0-9]|X)$/;
var arr_data = card.match(re_eighteen); // 正则取号码内所含出年月日数据
var year = arr_data[2];
var month = arr_data[3];
var day = arr_data[4];
var birthday = new Date(year + '/' + month + '/' + day);
return IdentityCode_verifyBirthday(year, month, day, birthday);
}
return false;
}
//5 校验日期 ，15位以'19'年份来进行补齐。
function IdentityCode_verifyBirthday(year, month, day, birthday) {
var now = new Date();
var now_year = now.getFullYear();
//年月日是否合理
if (birthday.getFullYear() == year
&& (birthday.getMonth() + 1) == month
&& birthday.getDate() == day) {
//判断年份的范围（3岁到150岁之间)
var time = now_year - year;
if (time >= 3 && time <= 150) {
return true;
}
return false;
}
return false;
}
//6 校验位的检测
function IdentityCode_checkParity(card) {
card = IdentityCode_changeFivteenToEighteen(card); // 15位转18位
var len = card.length;
if (len == '18') {
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');
var cardTemp = 0, i, valnum;
for (i = 0; i < 17; i++) {
cardTemp += card.substr(i, 1) * arrInt[i];
}
valnum = arrCh[cardTemp % 11];
if (valnum == card.substr(17, 1)) {
return true;
}
return false;
}
return false;
}
//7 15位转18位身份证号
function IdentityCode_changeFivteenToEighteen(card) {
if (card.length == '15') {
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');
var cardTemp = 0, i;
card = card.substr(0, 6) + '19' + card.substr(6, card.length - 6);
for (i = 0; i < 17; i++) {
cardTemp += card.substr(i, 1) * arrInt[i];
}
card += arrCh[cardTemp % 11];
return card;
}
return card;
}
//8 身份证号码检验主入口
function IdentityCodeValid(card) {
let pass = true;
let sex = ''
//是否为空
if (pass && card === '')
pass = false;
//校验长度，类型
if (pass && IdentityCode_isCardNo(card) === false)
pass = false;
//检查省份
if (pass && IdentityCode_checkProvince(card) === false)
pass = false;
//校验生日
if (pass && IdentityCode_checkBirthday(card) === false)
pass = false;
//检验位的检测
if (pass && IdentityCode_checkParity(card) === false)
pass = false;
if (pass) {
var iCard = IdentityCode_changeFivteenToEighteen(card);
if (parseInt(iCard.charAt(16)) % 2 == 0) {
sex = "0"; // 女生
} else {
sex = "1"; // 男生
}
return true
} else {
return false
}
}
//9 页面中调用校验身份证号入口
function isCardNo(sId,value) {
var result = IdentityCodeValid(value);
if(result){
return true;
}else{
$("#" + sId).val("");
layer.msg("身份证输入不合法", {icon: 2, time: 2000});
return false;
}
}
View Code
参考博文：https://www.jianshu.com/p/1ccc2cdf18dc
标签：arr,身份证号,校验,month,year,var,JS,day,card From： https://www.cnblogs.com/daytoy105/p/16655929.html