export function fmtNum(n: number): string {
  if (n >= 1_000_000) return (n / 1_000_000).toFixed(1) + "M";
  if (n >= 1_000) return (n / 1_000).toFixed(1) + "K";
  return String(Math.round(n));
}

export function toKeyVal(obj: Record<string, unknown>): string {
  return Object.entries(obj)
    .filter(([, v]) => v !== undefined && v !== null)
    .map(([k, v]) => `${k}=${v}`)
    .join(" ");
}

export function toKeyValList(rows: Record<string, unknown>[]): string {
  return rows.map(toKeyVal).join("\n");
}