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身份证合法校验
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var identityCodeValid = function (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; | |
} | |
else if (!city[code.substr(0, 2)]) { | |
tip = "身份证地址编码错误"; | |
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]) { | |
tip = "身份证校验位错误"; | |
pass = false; | |
} | |
} | |
} | |
if (!pass) throw new Error(tip); | |
return pass; | |
} |
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