function getQueryParams(url) {
  const params = {};
  // Regex to find key=value pairs after '?' or '&'
  const queryRegex = /[?&]([^=&]+)=([^&]*)/g;
  let match;

  while ((match = queryRegex.exec(url)) !== null) {
    // decodeURIComponent to properly handle URL-encoded characters in keys and values
    params[decodeURIComponent(match[1])] = decodeURIComponent(match[2]);
  }
  return params;
}

const url1 = "https://example.com/path?param1=value1&param2=value%20two";
const url2 = "http://localhost:3000?user_id=123&sort=name&page=1";
const url3 = "https://example.com/no-params";

console.log("URL 1 params:", getQueryParams(url1));
// Output: { param1: 'value1', param2: 'value two' }
console.log("URL 2 params:", getQueryParams(url2));
// Output: { user_id: '123', sort: 'name', page: '1' }
console.log("URL 3 params:", getQueryParams(url3));
// Output: {}