util-helpers/lib/formatBankCard.js

一个基于业务场景的工具方法库

'use strict';

var ut2 = require('ut2');

function formatBankCard(bankCardNo, options) {
    if (bankCardNo === void 0) { bankCardNo = ''; }
    var _a = options || {}, _b = _a.spaceMark, spaceMark = _b === void 0 ? ' ' : _b, _c = _a.length, length = _c === void 0 ? 4 : _c;
    var reg = new RegExp("(.{".concat(length, "})"), 'g');
    var regChar = new RegExp("".concat(spaceMark), 'g');
    var realValue = ut2.toString(bankCardNo).replace(regChar, '');
    var str = realValue.replace(reg, "$1".concat(spaceMark));
    return realValue.length % length === 0 ? str.substring(0, str.length - 1) : str;
}

module.exports = formatBankCard;