獲取瀏覽器類型(pc/android/ios/微信qq)

判斷是否爲手機 https://blog.csdn.net/zyh2525246/article/details/95448404

import { Injectable } from '@angular/core';

@Injectable({
  providedIn: 'root'
})
export class BrowserService {

  constructor() { }

  get ua() {
    try {
      if (navigator) {
        return navigator.userAgent;
      } else {
        // this.header['authorization']
        return '';
      }
    } catch {
      return '';
    }

   }

  get isIPhone() {
    const curlReg = /iphone/i;
    return curlReg.test(this.ua);
  }
}