js 身份证号合法校验
1.情景展示
如何使用js对用户录入的身份证号码的合法性进行校验?
js校验身份证号码的合法性。
2.具体实现
//验证身份证
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[012])(0[1-9]|[12]\d|3[01])\d{3}(\d|X)$/i.test(code)) {
alert("请输入正确的身份证明号码");
//tip = "身份证号格式错误";
pass = false;
} else if (!city[code.substr(0, 2)]) {
alert("请输入正确的身份证明号码");
//tip = "地址编码错误";
pass = false;
} else {
//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]) {
alert("请输入正确的身份证明号码");
//tip = "校验位错误";
pass = false;
}
}
}
return pass;
}
本文来自博客园,作者:Marydon,转载请注明原文链接:https://www.cnblogs.com/Marydon20170307/p/16350608.html