const randomString = function (len: number) {
  let charSet = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'
  let randomString = ''
  for (let i = 0; i < len; i++) {
    let randomPoz = Math.floor(Math.random() * charSet.length)
    randomString += charSet.charAt(randomPoz)
  }
  return randomString
}

export default randomString