function v() {
let u = navigator.userAgent, app = navigator.appVersion
return {
trident: u.indexOf('Trident') > -1,
presto: u.indexOf('Presto') > -1,
webKit: u.indexOf('AppleWebKit') > -1,
gecko: u.indexOf('Gecko') > -1 && u.indexOf('KHTML') == -1,
mobile: !!u.match(/AppleWebKit.*Mobile.*/),
ios: !!u.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/),
android: u.indexOf('Android') > -1 || u.indexOf('Adr') > -1,
iPhone: u.indexOf('iPhone') > -1,
iPad: u.indexOf('iPad') > -1,
webApp: u.indexOf('Safari') == -1,
weixin: u.indexOf('MicroMessenger') > -1,
qq: u.match(/\sQQ/i) == ' qq',
}
}
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