util-helpers/lib/isIdCard.js

一个基于业务场景的工具方法库

'use strict';

var ut2 = require('ut2');

var regIdCard = /^[1-9]\d{5}(19|20)?\d{2}((0[1-9])|(1[012]))(([0-2][1-9])|10|20|30|31)\d{3}(\d|X)?$/i;
function check(id) {
    var index, sum;
    for (sum = index = 0; index < 17; index++) {
        sum += (Math.pow(2, 17 - index) % 11) * Number(id[index]);
    }
    var num = (12 - (sum % 11)) % 11;
    if (num < 10) {
        return num === Number(id[17]);
    }
    else {
        return id[17].toUpperCase() === 'X';
    }
}
function isIdCard(value, options) {
    if (options === void 0) { options = {}; }
    var _a = options.loose, loose = _a === void 0 ? false : _a, _b = options.checkCode, checkCode = _b === void 0 ? true : _b;
    var valueStr = ut2.toString(value);
    if (valueStr.length === 15 && loose) {
        return regIdCard.test(valueStr);
    }
    if (valueStr.length === 18 && regIdCard.test(valueStr)) {
        if (checkCode) {
            return check(valueStr);
        }
        return true;
    }
    return false;
}

module.exports = isIdCard;