Vue中在移动端如何判断设备是安卓还是ios

  //判断安卓和ios
            appSource() {
                const u = navigator.userAgent;
                const isiOS = !!u.match(/(i[^;]+;( U;)? CPU.+Mac OS X/);
                if (isiOS) {
                    return "ios";
                } else {
                    return "android";
                }
            },