haw-utils/lib/processor/formatBankCard.js

一个基于业务场景的工具方法库

(function (global, factory) {
  if (typeof define === "function" && define.amd) {
    define(["exports"], factory);
  } else if (typeof exports !== "undefined") {
    factory(exports);
  } else {
    var mod = {
      exports: {}
    };
    factory(mod.exports);
    global.formatBankCard = mod.exports;
  }
})(typeof globalThis !== "undefined" ? globalThis : typeof self !== "undefined" ? self : this, function (_exports) {
  "use strict";

  Object.defineProperty(_exports, "__esModule", {
    value: true
  });
  _exports["default"] = void 0;
  /**
   * 格式化银行卡号
   * 
   * @static
   * @alias module:Processor.formatBankCard
   * @since 1.1.0
   * @param {String} str 要处理的字符串
   * @param {Object} [options] 配置项
   * @param {String} [options.char=' '] 间隔字符
   * @param {Number} [options.length=4] 间隔长度
   * @returns {String} 格式化的银行卡号
   * @example
   *
   * // 19位银行卡
   * formatBankCard('6228480402564890018');
   * // => 6228 4804 0256 4890 018
   * 
   * // 16位银行卡
   * formatBankCard('6228480402564890');
   * // => 6228 4804 0256 4890
   * 
   * // 16位银行卡，"-"间隔
   * formatBankCard('6228480402564890', {char: '-'});
   * // => 6228-4804-0256-4890
   * 
   */
  function formatBankCard() {
    var bankCardNo = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : '';
    var _ref = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
      _ref$char = _ref["char"],
      _char = _ref$char === void 0 ? ' ' : _ref$char,
      _ref$length = _ref.length,
      length = _ref$length === void 0 ? 4 : _ref$length;
    var reg = new RegExp("(\\d{".concat(length, "})"), 'g');
    var needRemoveLastChar = bankCardNo.length % length === 0;
    var str = bankCardNo.replace(reg, "$1".concat(_char));
    return needRemoveLastChar ? str.substr(0, str.length - 1) : str;
  }
  var _default = formatBankCard;
  _exports["default"] = _default;
});