检测打开设备

/*检测是支付宝还是其他*/
var ua = window.navigator.userAgent.toLowerCase();
if(ua.match(/AlipayClient/i) == 'alipayclient') {
    console.log('支付宝');
} else {
    // InfoApi.getFingerprint(0);
};

//检测微信中打开
function isWeiXin(){
    var ua = window.navigator.userAgent.toLowerCase();
    if(ua.indexOf('micromessenger')!=-1){
        return true;
    }else{
        return false;
    }
}
//检测支付宝中打开
function isAlipay(){
    var ua = window.navigator.userAgent.toLowerCase();
    if(ua.indexOf('alipay')!=-1){
        return true;
    }else{
        return false;
    }
}