/**
 * Generates a random UUID.
 *
 * @return {string} The generated UUID.
 */
export function randomUUID() {
  let d = new Date().getTime()
  if (
    typeof performance !== 'undefined' &&
    typeof performance.now === 'function'
  ) {
    d += performance.now() // 增加性能数据
  }
  const uuid = 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(
    /[xy]/g,
    function (c) {
      const r = (d + Math.random() * 16) % 16 | 0
      d = Math.floor(d / 16)
      return (c == 'x' ? r : (r & 0x3) | 0x8).toString(16)
    },
  )
  return uuid
}