|  | '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) | 
						
						
							|  | }
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