js身份证验证

js身份证验证

        function IdCodeValid(code){
                //身份证号合法性验证
                //支持15位和18位身份证号
                //支持地址编码、出生日期、校验位验证
            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 row={
                'pass':true,
                'msg':'验证成功'
            };
            if(!code || !/^\d{6}(18|19|20)?\d{2}(0[1-9]|1[012])(0[1-9]|[12]\d|3[01])\d{3}(\d|[xX])$/.test(code)){
                row={
                    'pass':false,
                    'msg':'身份证号格式错误'
                };
            }else if(!city[code.substr(0,2)]){
                row={
                    'pass':false,
                    'msg':'身份证号地址编码错误'
                };
            }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;
                    }
                    if(parity[sum % 11] != code[17].toUpperCase()){
                        row={
                            'pass':false,
                            'msg':'身份证号校验位错误'
                        };
                    }
                }
            }
            return row;
        }

转载:https://blog.csdn.net/mao__ge/article/details/89677119