isLength.js

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = isLength;

var _assertString = _interopRequireDefault(require("./util/assertString"));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

/* eslint-disable prefer-rest-params */
function isLength(str, options) {
  (0, _assertString.default)(str);
  var min;
  var max;

  if (_typeof(options) === 'object') {
    min = options.min || 0;
    max = options.max;
  } else {
    // backwards compatibility: isLength(str, min [, max])
    min = arguments[1] || 0;
    max = arguments[2];
  }

  var surrogatePairs = str.match(/[\uD800-\uDBFF][\uDC00-\uDFFF]/g) || [];
  var len = str.length - surrogatePairs.length;
  return len >= min && (typeof max === 'undefined' || len <= max);
}

module.exports = exports.default;
module.exports.default = exports.default;