| 123456789101112131415 | 'use strict';/** * Determines whether the specified URL is absolute * * @param {string} url The URL to test * * @returns {boolean} True if the specified URL is absolute, otherwise false */export default function isAbsoluteURL(url) {  // A URL is considered absolute if it begins with "<scheme>://" or "//" (protocol-relative URL).  // RFC 3986 defines scheme name as a sequence of characters beginning with a letter and followed  // by any combination of letters, digits, plus, period, or hyphen.  return /^([a-z][a-z\d+\-.]*:)?\/\//i.test(url);}
 |