2020最新移动端浏览器识别

ipad7 (13.4)下各浏览器userAgent

//chrome
Mozilla/5.0 (iPad; CPU OS 13_4 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/83.0.4103.88 Mobile/15E148 Safari/604.1

//TODO:safari
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_4) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.1 Safari/605.1.15

//weixin
Mozilla/5.0 (iPad; CPU OS 13_4 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/15E148 MicroMessenger/7.0.14(0x17000e23) NetType/WIFI Language/zh_CN

//douyin
Mozilla/5.0 (iPad; CPU OS 13_4 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/15E148 aweme_11.7.0 JsSdk/2.0 NetType/WIFI Channel/App Store ByteLocale/zh Region/CN ByteFullLocale/zh-Hans-CN WKWebView/1
//weibo
Mozilla/5.0 (iPad; CPU OS 13_4 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/15E148 Weibo (iPad7,12__weibo__10.6.0__ipad__os13.4)

ipad7 safari浏览器基本没有移动标识，判断mobile和safari的时候要注意。
没考虑qq,百度，360，uc浏览器，有机会补充

function checkUA(isUA){
  let ua = navigator.userAgent;
  let uas = ua.toLowerCase();
  let  mobile = /mobile|tablet|ip(ad|hone|od)|android/i.test(ua) || (uas.indexOf('safari') > -1 && /Mac OS/i.test(ua) && /Macintosh/i.test(ua));
  let android = mobile && (uas.indexOf('android') > -1 || uas.indexOf('linux') > -1) || uas.indexOf('adr') > -1;
  let ios = mobile && !android && /Mac OS/i.test(ua);
  let iphone = ios && uas.indexOf('iphone') > -1;
  let ipad = ios && !iphone;
  let wx = /MicroMessenger/i.test(ua);
  let chrome = (/CriOS/i.test(ua) || /Chrome/i.test(ua));
  let tiktok = mobile && /aweme/i.test(ua);
  let weibo = mobile && /Weibo/i.test(ua);
  let safari = ios && !chrome && !wx && !weibo && !tiktok && /Safari|Macintosh/i.test(ua);
  let res = {
    ua,
    mobile,
    android,
    ios,
    wx,
    chrome,
    iphone,
    ipad,
    safari,
    tiktok,
    weibo
  };
  return isUA && res.hasOwnProperty(isUA) ? res[isUA] : res;
}