24 lines
1.0 KiB
JavaScript
24 lines
1.0 KiB
JavaScript
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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); }
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import assertString from './util/assertString';
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/* eslint-disable prefer-rest-params */
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export default function isLength(str, options) {
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assertString(str);
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var min;
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var max;
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if (_typeof(options) === 'object') {
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min = options.min || 0;
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max = options.max;
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} else {
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// backwards compatibility: isLength(str, min [, max])
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min = arguments[1] || 0;
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max = arguments[2];
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}
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var presentationSequences = str.match(/(\uFE0F|\uFE0E)/g) || [];
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var surrogatePairs = str.match(/[\uD800-\uDBFF][\uDC00-\uDFFF]/g) || [];
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var len = str.length - presentationSequences.length - surrogatePairs.length;
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return len >= min && (typeof max === 'undefined' || len <= max);
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}
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