```
/** The text, cut to limit characters with an ellipsis when it is longer. */
export function truncate(text: string, limit: number): string {
  if (typeof limit !== 'number' || limit < 3) {
    throw new Error(`Limit must be an integer of at least 3`);
  }
  if (text.length <= limit) {
    return text;
  }
  const ellipsis = "...".length;
  return text.substring(0, Math.max(0, limit - ellipsis)) + "...";
}
```