function _typeof(obj) { "@babel/helpers - typeof"; 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); } import assertString from './util/assertString'; /* eslint-disable prefer-rest-params */ export default function isLength(str, options) { assertString(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 presentationSequences = str.match(/(\uFE0F|\uFE0E)/g) || []; var surrogatePairs = str.match(/[\uD800-\uDBFF][\uDC00-\uDFFF]/g) || []; var len = str.length - presentationSequences.length - surrogatePairs.length; return len >= min && (typeof max === 'undefined' || len <= max); }