Function formatTokens

apps/vis/web/src/util/time.ts:46–51

(n: number | null | undefined)

/** Format a token count compactly (e.g. "512", "12.4k", "1.20M"). */
export function formatTokens(n: number | null | undefined): string {
  if (n === null || n === undefined || !Number.isFinite(n)) return '—';
  if (n < 1000) return String(n);
  if (n < 1_000_000) return `${(n / 1000).toFixed(1)}k`;
  return `${(n / 1_000_000).toFixed(2)}M`;
}