模拟中奖小demo

class Winning {
  constructor(el, option) {
    this.el = el
    this.option = Object.assign(
      {},
      {
        type: 'qq', // 可选择qq或者phone
        min: 10, //最少数据
        max: 20 // 最多数据,
      },
      option
    )
    this._init()
  }
  _init() {
    this.getData()
  }
  // TODO: 生成数据(可以采用回调加强灵活性)
  getData() {
    let html = '',
      count = random(this.option.min, this.option.max),
      type = this.option.type === 'qq'
    for (let i = 0; i < count; i++) {
      html += `
恭喜${
        type ? 'QQ' : '手机'
      }用户: ${
        type ? getQQ() : getPhone()
      } 于 ${new Date().Format(
        'yyyy-MM-dd'
      )} 奖励: ${randomGift()}
`
    }
    document.getElementById(this.el).innerHTML = html
  }
  // 滚动
  scroll() {}
}
//***************************** */

const random = (min, max) => Math.floor(Math.random() * (max - min + 1) + min)

// 获取随机6-10位QQ号
function getQQ() {
  let qq = random(100000, 9999999999).toString()
  return qq.replace(qq.substr(-4), '****')
}

let phoneTest = [
  '133',
  '149',
  '153',
  '173',
  '177',
  '180',
  '181',
  '189',
  '199',
  '130',
  '131',
  '132',
  '145',
  '155',
  '156',
  '166',
  '171',
  '175',
  '176',
  '185',
  '186',
  '166',
  '134',
  '135',
  '136',
  '137',
  '138',
  '139',
  '147',
  '150',
  '151',
  '152',
  '157',
  '158',
  '159',
  '172',
  '178',
  '182',
  '183',
  '184',
  '187',
  '188',
  '198'
]
const getPhone = () => {
  return (
    phoneTest[random(0, phoneTest.length - 1)] + '****' + random(1000, 9999)
  )
}

const gifts = [
  '永久豪华绿钻',
  '永久豪华绿钻',
  '永久视频会员',
  '永久豪华黄钻',
  '永久超级会员',
  ''
]

// 随机中奖的奖品
function randomGift() {
  let num = random(0, gifts.length - 1),
    zan = random(100, 10000)
  return num === gifts.length - 1 ? gifts[num] + `${zan}名片赞` : gifts[num]
}

// 格式化时间
Date.prototype.Format = function(fmt) {
  let o = {
    'M+': this.getMonth() + 1, //月份
    'd+': this.getDate(), //日
    'h+': this.getHours(), //小时
    'm+': this.getMinutes(), //分
    's+': this.getSeconds(), //秒
    'q+': Math.floor((this.getMonth() + 3) / 3), //季度
    S: this.getMilliseconds() //毫秒
  }
  if (/(y+)/.test(fmt))
    fmt = fmt.replace(
      RegExp.$1,
      (this.getFullYear() + '').substr(4 - RegExp.$1.length)
    )
  for (var k in o)
    if (new RegExp('(' + k + ')').test(fmt))
      fmt = fmt.replace(
        RegExp.$1,
        RegExp.$1.length == 1 ? o[k] : ('00' + o[k]).substr(('' + o[k]).length)
      )
  return fmt
}