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export const urlJoin = function (...args: any[]) {  let input;
  if (typeof args[0] === 'object') {    input = args[0];  } else {    input = [].slice.call(args);  }
  return normalize(input);};
const normalize = (strArray: Array<string>) => {  const resultArray = [];  if (strArray.length === 0) {    return '';  }
  if (typeof strArray[0] !== 'string') {    throw new TypeError('Url must be a string. Received ' + strArray[0]);  }
  // If the first part is a plain protocol, we combine it with the next part.  if (strArray[0].match(/^[^/:]+:\/*$/) && strArray.length > 1) {    const first = strArray.shift();    strArray[0] = first + strArray[0];  }
  // There must be two or three slashes in the file protocol, two slashes in anything else.  if (strArray[0].match(/^file:\/\/\//)) {    strArray[0] = strArray[0].replace(/^([^/:]+):\/*/, '$1:///');  } else {    strArray[0] = strArray[0].replace(/^([^/:]+):\/*/, '$1://');  }
  for (let i = 0; i < strArray.length; i++) {    let component = strArray[i];
    if (typeof component !== 'string') {      throw new TypeError('Url must be a string. Received ' + component);    }
    if (component === '') {      continue;    }
    if (i > 0) {      // Removing the starting slashes for each component but the first.      component = component.replace(/^[\/]+/, '');    }    if (i < strArray.length - 1) {      // Removing the ending slashes for each component but the last.      component = component.replace(/[\/]+$/, '');    } else {      // For the last component we will combine multiple slashes to a single one.      component = component.replace(/[\/]+$/, '/');    }
    resultArray.push(component);  }
  let str = resultArray.join('/');  // Each input component is now separated by a single slash except the possible first plain protocol part.
  // remove trailing slash before parameters or hash  str = str.replace(/\/(\?|&|#[^!])/g, '$1');
  // replace ? in parameters with &  let parts = str.split('?');  str = parts.shift() + (parts.length > 0 ? '?' : '') + parts.join('&');
  return str;};