A URL parsing function mostly compatible with the URL() constructor for browser's that don't support it

parseUrl.js

function parseUrl(url = '') {
  // Make it compatible with the URL() constructor
  const parsed = {
    href: '',
    origin: '',
    protocol: '',
    username: '',
    password: '',
    host: '',
    hostname: '',
    port: '',
    pathname: '',
    search: '',
    searchParams: {},
    hash: '',
  };
  /*
    URI Generic Syntax
    Source: https://tools.ietf.org/html/rfc3986#appendix-B
  */
  const regexUrl = /^(?:(?:(([^:\/#\?]+:)?(?:(?:\/\/)(?:(?:(?:([^:@\/#\?]+)(?:\:([^:@\/#\?]*))?)@)?(([^:\/#\?\]\[]+|\[[^\/\]@#?]+\])(?:\:([0-9]+))?))?)?)?((?:\/?(?:[^\/\?#]+\/+)*)(?:[^\?#]*)))?(\?[^#]+)?)(#.*)?/;
  if (url) {
    const parsedArr = regexUrl.exec(url);
    parsed.href = parsedArr[0];
    parsed.origin = parsedArr[1];
    parsed.protocol = parsedArr[2];
    parsed.username = parsedArr[3];
    parsed.password = parsedArr[4];
    parsed.host = parsedArr[5];
    parsed.hostname = parsedArr[6];
    parsed.port = parsedArr[7];
    parsed.pathname = parsedArr[8];
    parsed.search = parsedArr[9];
    parsed.hash = parsedArr[10];
  }
  return parsed;
}