前端JS校验银行卡卡号和身份证号码（附ES6版方法）

1、银行卡卡号校验方法。

function luhnCheck(bankno) {

var lastNum = bankno.substr(bankno.length - 1, 1); //取出最后一位（与luhn进行比较）

var first15Num = bankno.substr(0, bankno.length - 1); //前15或18位

var newArr = new Array();

for (var i = first15Num.length - 1; i > -1; i--) { //前15或18位倒序存进数组

newArr.push(first15Num.substr(i, 1));

}

var arrJiShu = new Array(); //奇数位*2的积 <9

var arrJiShu2 = new Array(); //奇数位*2的积 >9

var arrOuShu = new Array(); //偶数位数组

for (var j = 0; j < newArr.length; j++) {

if ((j + 1) % 2 == 1) { //奇数位

    if (parseInt(newArr[j]) * 2 < 9) arrJiShu.push(parseInt(newArr[j]) * 2);

   else arrJiShu2.push(parseInt(newArr[j]) * 2);

} else //偶数位

    arrOuShu.push(newArr[j]);

}

var jishu_child1 = new Array(); //奇数位*2 >9 的分割之后的数组个位数

var jishu_child2 = new Array(); //奇数位*2 >9 的分割之后的数组十位数

for (var h = 0; h < arrJiShu2.length; h++) {

    jishu_child1.push(parseInt(arrJiShu2[h]) % 10);

    jishu_child2.push(parseInt(arrJiShu2[h]) / 10);

}

var sumJiShu = 0; //奇数位*2 < 9 的数组之和

var sumOuShu = 0; //偶数位数组之和

var sumJiShuChild1 = 0; //奇数位*2 >9 的分割之后的数组个位数之和

var sumJiShuChild2 = 0; //奇数位*2 >9 的分割之后的数组十位数之和

var sumTotal = 0;

for (var m = 0; m < arrJiShu.length; m++) {

    sumJiShu = sumJiShu + parseInt(arrJiShu[m]);

}

for (var n = 0; n < arrOuShu.length; n++) {

    sumOuShu = sumOuShu + parseInt(arrOuShu[n]);

}

for (var p = 0; p < jishu_child1.length; p++) {

    sumJiShuChild1 = sumJiShuChild1 + parseInt(jishu_child1[p]);

    sumJiShuChild2 = sumJiShuChild2 + parseInt(jishu_child2[p]);

}

//计算总和

sumTotal = parseInt(sumJiShu) + parseInt(sumOuShu) + parseInt(sumJiShuChild1) + parseInt(sumJiShuChild2);

//计算luhn值

var k = parseInt(sumTotal) % 10 == 0 ? 10 : parseInt(sumTotal) % 10;

var luhn = 10 - k;

if (lastNum == luhn) {

　return true;

    } else {

         return false;

    }

}

 

2、身份证号校验

 

var Wi = [ 7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2, 1 ]; // 加权因子

var ValideCode = [ 1, 0, 10, 9, 8, 7, 6, 5, 4, 3, 2 ]; // 身份证验证位值.10代表X

function IdCardValidate(idCard) {

idCard = trim(idCard.replace(/ /g, "")); //去掉字符串头尾空格

if (idCard.length == 15) {

return isValidityBrithBy15IdCard(idCard); //进行15位身份证的验证

} else if (idCard.length == 18) {

var a_idCard = idCard.split(""); // 得到身份证数组

if(isValidityBrithBy18IdCard(idCard)&&isTrueValidateCodeBy18IdCard(a_idCard)){ //进行18位身份证的基本验证和第18位的验证

return true;

}else {

return false;

}

} else {

return false;

}

}

/**

* 判断身份证号码为18位时最后的验证位是否正确

* @param a_idCard 身份证号码数组

* @return

*/

function isTrueValidateCodeBy18IdCard(a_idCard) {

var sum = 0; // 声明加权求和变量

if (a_idCard[17].toLowerCase() == 'x') {

a_idCard[17] = 10; // 将最后位为x的验证码替换为10方便后续操作

}

for ( var i = 0; i < 17; i++) {

sum += Wi[i] * a_idCard[i]; // 加权求和

}

valCodePosition = sum % 11; // 得到验证码所位置

if (a_idCard[17] == ValideCode[valCodePosition]) {

return true;

} else {

return false;

}

}

/**

* 验证18位数身份证号码中的生日是否是有效生日

* @param idCard 18位书身份证字符串

* @return

*/

function isValidityBrithBy18IdCard(idCard18){

var year = idCard18.substring(6,10);

var month = idCard18.substring(10,12);

var day = idCard18.substring(12,14);

var temp_date = new Date(year,parseFloat(month)-1,parseFloat(day));

// 这里用getFullYear()获取年份，避免千年虫问题

if(temp_date.getFullYear()!=parseFloat(year)

||temp_date.getMonth()!=parseFloat(month)-1

||temp_date.getDate()!=parseFloat(day)){

return false;

}else{

return true;

}

}

/**

* 验证15位数身份证号码中的生日是否是有效生日

* @param idCard15 15位书身份证字符串

* @return

*/

function isValidityBrithBy15IdCard(idCard15){

var year = idCard15.substring(6,8);

var month = idCard15.substring(8,10);

var day = idCard15.substring(10,12);

var temp_date = new Date(year,parseFloat(month)-1,parseFloat(day));

// 对于老身份证中的你年龄则不需考虑千年虫问题而使用getYear()方法

if(temp_date.getYear()!=parseFloat(year)

||temp_date.getMonth()!=parseFloat(month)-1

||temp_date.getDate()!=parseFloat(day)){

return false;

}else{

return true;

}

}

//去掉字符串头尾空格

function trim(str) {

return str.replace(/(^\s*)|(\s*$)/g, "");

}

 

 

ES6版校验方法

 

1、银行卡校验

export function bankCardValidate(bankno) {

const lastNum = +bankno.substr(bankno.length - 1, 1);

const first15Num = bankno.substr(0, bankno.length - 1);

const newArr = [];

for (let i = first15Num.length - 1; i > -1; i -= 1) {

newArr.push(first15Num.substr(i, 1));

}

const arrJiShu = [];

const arrJiShu2 = [];

const arrOuShu = [];

for (let j = 0; j < newArr.length; j += 1) {

if ((j + 1) % 2 === 1) {

if (parseInt(newArr[j], 10) * 2 < 9) {

arrJiShu.push(parseInt(newArr[j], 10) * 2);

} else {

arrJiShu2.push(parseInt(newArr[j], 10) * 2);

}

} else {

arrOuShu.push(newArr[j]);

}

}

const jishuChild1 = [];

const jishuChild2 = [];

for (let h = 0; h < arrJiShu2.length; h += 1) {

jishuChild1.push(parseInt(arrJiShu2[h], 10) % 10);

jishuChild2.push(parseInt(arrJiShu2[h], 10) / 10);

}

let sumJiShu = 0;

let sumOuShu = 0;

let sumJiShuChild1 = 0;

let sumJiShuChild2 = 0;

let sumTotal = 0;

for (let m = 0; m < arrJiShu.length; m += 1) {

sumJiShu += parseInt(arrJiShu[m], 10);

}

for (let n = 0; n < arrOuShu.length; n += 1) {

sumOuShu += parseInt(arrOuShu[n], 10);

}

for (let p = 0; p < jishuChild1.length; p += 1) {

sumJiShuChild1 += parseInt(jishuChild1[p], 10);

sumJiShuChild2 += parseInt(jishuChild2[p], 10);

}

sumTotal = parseInt(sumJiShu, 10) + parseInt(sumOuShu, 10)

+ parseInt(sumJiShuChild1, 10) + parseInt(sumJiShuChild2, 10);

const k = parseInt(sumTotal, 10) % 10 === 0 ? 10 : parseInt(sumTotal, 10) % 10;

const luhn = 10 - k;

if (lastNum === luhn) {

return true;

} else {

return false;

}

}

 

2、身份证号校验

export function IdCardValidate(idCard) {

const idCards = trim(idCard.replace(/ /g, ''));

if (idCard.length === 15) {

return isValidityBrithBy15IdCard(idCards);

} else if (idCards.length === 18) {

const idCardS = idCards.split(''); // 得到身份证数组

if (isValidityBrithBy18IdCard(idCards) && isTrueValidateCodeBy18IdCard(idCardS)) {

return true;

} else {

return false;

}

} else {

return false;

}

function isTrueValidateCodeBy18IdCard(aIdCard) {

const Wi = [7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2, 1];

const ValideCode = ['1', '0', '10', '9', '8', '7', '6', '5', '4', '3', '2'];

let sum = 0;

const AidCard = aIdCard;

if (AidCard[17].toLowerCase() === 'x') {

AidCard[17] = '10';

}

for (let i = 0; i < 17; i += 1) {

sum += Wi[i] * AidCard[i];

}

const valCodePosition = sum % 11;

if (AidCard[17] === ValideCode[valCodePosition]) {

return true;

} else {

return false;

}

}

function isValidityBrithBy18IdCard(idCard18) {

const year = idCard18.substring(6, 10);

const month = idCard18.substring(10, 12);

const day = idCard18.substring(12, 14);

const tempDate = new Date(year, parseFloat(month) - 1, parseFloat(day));

// 这里用getFullYear()获取年份，避免千年虫问题

if (tempDate.getFullYear()

!== parseFloat(year)

|| tempDate.getMonth()

!== parseFloat(month) - 1

|| tempDate.getDate()

!== parseFloat(day)) {

return false;

} else {

return true;

}

}

function isValidityBrithBy15IdCard(idCard15) {

const year = idCard15.substring(6, 8);

const month = idCard15.substring(8, 10);

const day = idCard15.substring(10, 12);

const tempDate = new Date(year, parseFloat(month) - 1, parseFloat(day));

if (tempDate.getYear()

!== parseFloat(year) ||

tempDate.getMonth()

!== parseFloat(month) - 1 || tempDate.getDate() !== parseFloat(day)) {

return false;

} else {

return true;

}

}

function trim(str) {

return str.replace(/(^\s*)|(\s*$)/g, '');

}

}