serialize and deserialize between an object and a search string

searchparams.js

/**
 * (de)serialize an object to a search string, like ?key=value&other=more
 **/

export function getSearchValues(key: string) {
  const params = new URLSearchParams(location.search);
  return params.get(key);
}

export function setSearchParams(key: string, value: any, push = false) {
  const params = new URLSearchParams(location.search);
  if (!!value) params.set(key, value.toString());
  else params.delete(key);

  // convert params object to a string with ? delimiter or empty
  let paramString = params.toString();
  paramString = !!paramString ? '?' + paramString : '';

  const pathname = window.location.pathname;
  if (push === true) window.history.pushState({}, '', pathname + paramString);
  else window.history.replaceState({}, '', pathname + paramString);
}