Function formatTime

packages/jest-util/src/formatTime.ts:8–22

(
  time: number,
  prefixPower = -3,
  padLeftLength = 0,
)

 */

export default function formatTime(
  time: number,
  prefixPower = -3,
  padLeftLength = 0,
): string {
  const prefixes = ['n', 'μ', 'm', ''];
  const prefixIndex = Math.max(
    0,
    Math.min(
      Math.trunc(prefixPower / 3) + prefixes.length - 1,
      prefixes.length - 1,
    ),
  );
  return `${String(time).padStart(padLeftLength)} ${prefixes[prefixIndex]}s`;
}