a2702f6d
 刘淇
巡查计划
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'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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