18 lines
563 B
JavaScript
18 lines
563 B
JavaScript
const assertString = require('./util/assert-string');
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/* eslint-disable prefer-rest-params */
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module.exports = function isByteLength(str, options) {
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assertString(str);
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let min;
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let 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 { // backwards compatibility: isByteLength(str, min [, max])
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min = arguments[1];
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max = arguments[2];
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}
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const len = encodeURI(str).split(/%..|./).length - 1;
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return len >= min && (typeof max === 'undefined' || len <= max);
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};
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