如何判断当前环境是移动端还是PC端

const appleIphone = /iPhone/i;
const appleIpod = /iPod/i;
const appleTablet = /iPad/i;
const androidPhone = /\bAndroid(?:.+)Mobile\b/i; // Match 'Android' AND 'Mobile'
const androidTablet = /Android/i;

import isMobile from "ismobilejs";
 
const mobile = isMobile();

isPc() {
    var userAgentInfo = navigator.userAgent
    var Agents = new Array(
      '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
  }

isPc() {
    var userAgentInfo = navigator.userAgent
    var Agents = new Array(
      'Android',
      'iPhone',
      'SymbianOS',
      'Windows Phone',
      'iPad',
      'iPod'
    )
    var flag = true
    flag = !Agents.some((ele) => {
        return userAgentInfo.indexOf(ele) > 0
    })
    return flag
  }