35 lines
901 B
Plaintext
35 lines
901 B
Plaintext
"use strict";
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/**
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* protocols
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* Returns the protocols of an input url.
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*
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* @name protocols
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* @function
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* @param {String|URL} input The input url (string or `URL` instance)
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* @param {Boolean|Number} first If `true`, the first protocol will be returned. If number, it will represent the zero-based index of the protocols array.
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* @return {Array|String} The array of protocols or the specified protocol.
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*/
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module.exports = function protocols(input, first) {
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if (first === true) {
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first = 0;
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}
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var prots = "";
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if (typeof input === "string") {
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try {
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prots = new URL(input).protocol;
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} catch (e) {}
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} else if (input && input.constructor === URL) {
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prots = input.protocol;
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}
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var splits = prots.split(/\:|\+/).filter(Boolean);
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if (typeof first === "number") {
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return splits[first];
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}
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return splits;
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}; |