js 判断当前页面处于什么设备终端和浏览器环境

const getBrowser = () => {
  const { userAgent, browserLanguage, language } = navigator
  const outputDevice = {
    isIos: !!userAgent.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/), // ios 终端
    isMobile: !!userAgent.match(/AppleWebKit.*Mobile.*/), // 是否移动终端
    isAndroid: userAgent.indexOf('Android') > -1 || userAgent.indexOf('Linux') > -1, // android 终端端或者uc 浏览器
    isIphone: !!userAgent.indexOf('iPhone') > -1, // 是否为iPhone或则QQHD浏览器
    iPad: userAgent.indexOf('iPad') > -1, // 是否是iPad
    isWebApp: userAgent.indexOf('Safari') === -1, // 是否为Webapp，没有头部和底部
    isTrident: userAgent.indexOf('Trident') > -1, //IE内核
    isPresto: userAgent.indexOf('Presto') > -1, // opera 内核
    isWebKit: userAgent.indexOf('AppleWebkit') > -1, // 苹果谷歌内核
    isGecko: userAgent.indexOf('Gecko') > -1 && userAgent.indexOf('KHTML') === -1, //火狐内核
    isWechat: !!userAgent.match(/micromessenger/gi),
    isWeiBo: !!userAgent.match(/weibo/gi),
    isQQ: !!userAgent.match(/qq/gi),
  }
  const outputLang = (browserLanguage || language).toLowerCase();
  return {
    outputDevice, outputLang
  }
}

 navigator对象：

appCodeName: "Mozilla"
appName: "Netscape"
appVersion: "5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/98.0.4758.102 Safari/537.36"
bluetooth: Bluetooth {}
clipboard: Clipboard {}
connection: NetworkInformation {onchange: null, effectiveType: '4g', rtt: 50, downlink: 10, saveData: false}
cookieEnabled: true
credentials: CredentialsContainer {}
deviceMemory: 8
doNotTrack: null
geolocation: Geolocation {}
hardwareConcurrency: 12
hid: HID {onconnect: null, ondisconnect: null}
ink: Ink {}
keyboard: Keyboard {}
language: "zh-CN"
languages: (2) ['zh-CN', 'zh']
locks: LockManager {}
managed: NavigatorManagedData {onmanagedconfigurationchange: null}
maxTouchPoints: 0
mediaCapabilities: MediaCapabilities {}
mediaDevices: MediaDevices {ondevicechange: null}
mediaSession: MediaSession {metadata: null, playbackState: 'none'}
mimeTypes: MimeTypeArray {0: MimeType, 1: MimeType, application/pdf: MimeType, text/pdf: MimeType, length: 2}
onLine: true
pdfViewerEnabled: true
permissions: Permissions {}
platform: "Win32"
plugins: PluginArray {0: Plugin, 1: Plugin, 2: Plugin, 3: Plugin, 4: Plugin, PDF Viewer: Plugin, Chrome PDF Viewer: Plugin, Chromium PDF Viewer: Plugin, Microsoft Edge PDF Viewer: Plugin, WebKit built-in PDF: Plugin, …}
presentation: Presentation {defaultRequest: null, receiver: null}
product: "Gecko"
productSub: "20030107"
scheduling: Scheduling {}
serial: Serial {onconnect: null, ondisconnect: null}
serviceWorker: ServiceWorkerContainer {controller: null, ready: Promise, oncontrollerchange: null, onmessage: null, onmessageerror: null}
storage: StorageManager {}
usb: USB {onconnect: null, ondisconnect: null}
userActivation: UserActivation {hasBeenActive: true, isActive: true}
userAgent: "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/98.0.4758.102 Safari/537.36"
userAgentData: NavigatorUAData
　　brands: Array(3)
　　　　0: {brand: ' Not A;Brand', version: '99'}
　　　　1: {brand: 'Chromium', version: '98'}
　　　　2: {brand: 'Google Chrome', version: '98'}
　　　　length: 3
　　　　[[Prototype]]: Array(0)
mobile: false
platform: "Windows"
[[Prototype]]: NavigatorUAData
vendor: "Google Inc."
vendorSub: ""

 

记录进步！！！