javascript - 有没有js语句 使特定的js和css在移动端不加载？

<code>var browserRedirect = function() {
    var sUserAgent = navigator.userAgent.toLowerCase();
    var systemclass = {};
    systemclass.bIsIpad = sUserAgent.match(/ipad/i) == "ipad";
    systemclass.bIsIphoneOs = sUserAgent.match(/iphone os/i) == "iphone os";
    systemclass.bIsMidp = sUserAgent.match(/midp/i) == "midp";
    systemclass.bIsUc7 = sUserAgent.match(/rv:1.2.3.4/i) == "rv:1.2.3.4";
    systemclass.bIsUc = sUserAgent.match(/ucweb/i) == "ucweb";
    systemclass.bIsAndroid = sUserAgent.match(/android/i) == "android";
    systemclass.bIsCE = sUserAgent.match(/windows ce/i) == "windows ce";
    systemclass.bIsWM = sUserAgent.match(/windows mobile/i) == "windows mobile";
    systemclass.bIsWX = sUserAgent.match(/MicroMessenger/i) == "micromessenger";
    return systemclass;
};
var nowclass = browserRedirect();

if (nowclass.bIsIpad || nowclass.bIsIphoneOs || nowclass.bIsMidp || nowclass.bIsUc7 || nowclass.bIsUc || nowclass.bIsAndroid || nowclass.bIsCE || nowclass.bIsWM) {
    if (nowclass.bIsIphoneOs || nowclass.bIsIpad || nowclass.bIsMidp) { //如果是ios移动设备
        window.location.href = "ios需要跳转的地方";
        if (nowclass.bIsWX) { //解决以微信内核浏览器打开无法直接跳转给出提示点击跳转至safari打开
            document.getElementById("tipsid").style.display = "block";
        }
    } else if (nowclass.bIsAndroid) { //如果是android移动设备
        window.location.href = "android需要跳转的地方";
    }
} else {
    window.location.href = "PC端跳转去的地方";
}

</code>