src/lib/query-string.ts

type QueryValue = string | number | null | undefined;

export function buildQueryString(
  current: URLSearchParams,
  updates: Record<string, QueryValue>,
) {
  const params = new URLSearchParams(current);

  Object.entries(updates).forEach(([key, value]) => {
    if (value === null || value === undefined || value === "") {
      params.delete(key);
      return;
    }

    params.set(key, String(value));
  });

  return params.toString();
}