客户端检测

前言：用于客户端检测的工具函数记录

是否为IOS设备

let isIos = () => {
  var u = navigator.userAgent
  if (u.indexOf('Android') > -1 || u.indexOf('Linux') > -1) {
    //安卓手机
    // return "Android";
    return false
  } else if (u.indexOf('iPhone') > -1) {
    //苹果手机
    // return "iPhone";
    return true
  } else if (u.indexOf('iPad') > -1) {
    //iPad
    // return "iPad";
    return false
  } else if (u.indexOf('Windows Phone') > -1) {
    //winphone手机
    // return "Windows Phone";
    return false
  } else {
    return false
  }
}

是否为PC设备

let isPC = () => {
  //是否为PC端
  var userAgentInfo = navigator.userAgent
  var Agents = [
    'Android',
    'iPhone',
    'SymbianOS',
    'Windows Phone',
    'iPad',
    'iPod',
  ]
  var flag = true
  for (var v = 0; v < Agents.length; v++) {
    if (userAgentInfo.indexOf(Agents[v]) > 0) {
      flag = false
      break
    }
  }
  return flag
}

浏览器类型

let browserType = () => {
  var userAgent = navigator.userAgent //取得浏览器的userAgent字符串
  var isOpera = userAgent.indexOf('Opera') > -1 //判断是否Opera浏览器
  var isIE =
      userAgent.indexOf('compatible') > -1 &&
      userAgent.indexOf('MSIE') > -1 &&
      !isOpera //判断是否IE浏览器
  var isIE11 =
      userAgent.indexOf('Trident') > -1 && userAgent.indexOf('rv:11.0') > -1
  var isEdge = userAgent.indexOf('Edge') > -1 && !isIE //判断是否IE的Edge浏览器
  var isFF = userAgent.indexOf('Firefox') > -1 //判断是否Firefox浏览器
  var isSafari =
      userAgent.indexOf('Safari') > -1 && userAgent.indexOf('Chrome') == -1 //判断是否Safari浏览器
  var isChrome =
      userAgent.indexOf('Chrome') > -1 && userAgent.indexOf('Safari') > -1 //判断Chrome浏览器

  if (isIE) {
    var reIE = new RegExp('MSIE (\\d+\\.\\d+);')
    reIE.test(userAgent)
    var fIEVersion = parseFloat(RegExp['$1'])
    if (fIEVersion == 7) return 'IE7'
    else if (fIEVersion == 8) return 'IE8'
    else if (fIEVersion == 9) return 'IE9'
    else if (fIEVersion == 10) return 'IE10'
    else return 'IE7以下' //IE版本过低
  }
  if (isIE11) return 'IE11'
  if (isEdge) return 'Edge'
  if (isFF) return 'FF'
  if (isOpera) return 'Opera'
  if (isSafari) return 'Safari'
  if (isChrome) return 'Chrome'
}