59 lines
1.3 KiB
JavaScript
59 lines
1.3 KiB
JavaScript
"use strict";
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const hasToStringTag = require("has-to-string-tag-x");
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const isObject = require("is-object");
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const toString = Object.prototype.toString;
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const urlClass = "[object URL]";
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const hash = "hash";
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const host = "host";
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const hostname = "hostname";
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const href = "href";
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const password = "password";
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const pathname = "pathname";
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const port = "port";
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const protocol = "protocol";
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const search = "search";
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const username = "username";
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const isURL = (url, supportIncomplete/*=false*/) =>
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{
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if (!isObject(url)) return false;
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// Native implementation in older browsers
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if (!hasToStringTag && toString.call(url) === urlClass) return true;
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if (!(href in url)) return false;
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if (!(protocol in url)) return false;
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if (!(username in url)) return false;
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if (!(password in url)) return false;
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if (!(hostname in url)) return false;
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if (!(port in url)) return false;
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if (!(host in url)) return false;
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if (!(pathname in url)) return false;
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if (!(search in url)) return false;
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if (!(hash in url)) return false;
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if (supportIncomplete !== true)
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{
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if (!isObject(url.searchParams)) return false;
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// TODO :: write a separate isURLSearchParams ?
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}
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return true;
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}
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isURL.lenient = url =>
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{
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return isURL(url, true);
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};
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module.exports = isURL;
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