SOURCE

/**
 * 获取某一长度的随机字符串 { len: 16, other: '!#$%()*+,-./:;=?@[]^_`{|}~' }
 * @param {number} len 长度，可不传，默认 6 - 16 取值
 * @param {string} other 添加字符串，可不传，默认为空
 */
const genUid = (len, other) => {
  let def = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'
  let out = []
  !len && (len = parseInt(6 + Math.random() * 10))
  other && (def = other + def)
  for (let i = 0; i < len; i++) {
    out[i] = def.charAt(Math.random() * def.length)
  }
}

genUid(10)