js判断是移动端设备还是pc端设备代码

js判断是移动端设备还是pc端设备代码，js移动端设备判断方法比较多，各路大神给出了各种设备判断方法，你看中哪个用哪个

这个移动端判断代码比较少根据navigator.userAgent判断

<script type="text/javascript">
//懒人建站http://www.51xuediannao.com/
if ((navigator.userAgent.match(/(phone|pad|pod|iPhone|iPod|ios|iPad|Android|Mobile|BlackBerry|IEMobile|MQQBrowser|JUC|Fennec|wOSBrowser|BrowserNG|WebOS|Symbian|Windows Phone)/i))) {
   alert('手机端')
}else{
   alert('移动端')
}
</script>

这个移动端判断代码比较少根据navigator.userAgent来判断

<script type="text/javascript">
//懒人建站http://www.51xuediannao.com/
        function browserRedirect() {
            var sUserAgent = navigator.userAgent.toLowerCase();
            var bIsIpad = sUserAgent.match(/ipad/i) == "ipad";
            var bIsIphoneOs = sUserAgent.match(/iphone os/i) == "iphone os";
            var bIsMidp = sUserAgent.match(/midp/i) == "midp";
            var bIsUc7 = sUserAgent.match(/rv:1.2.3.4/i) == "rv:1.2.3.4";
            var bIsUc = sUserAgent.match(/ucweb/i) == "ucweb";
            var bIsAndroid = sUserAgent.match(/android/i) == "android";
            var bIsCE = sUserAgent.match(/windows ce/i) == "windows ce";
            var bIsWM = sUserAgent.match(/windows mobile/i) == "windows mobile";
            document.writeln("您的浏览设备为：");
            if (bIsIpad || bIsIphoneOs || bIsMidp || bIsUc7 || bIsUc || bIsAndroid || bIsCE || bIsWM) {
                alert("手机端");
            } else {
                document.writeln("pc设备");
            }
        }

        browserRedirect();
</script>

这个移动端判断代码比较少根据navigator.userAgent来判断

<script type="text/javascript">
if(navigator.userAgent.match(/(iPhone|iPod|Android|ios)/i)){
  alert('移动端')
}
</script>

下面这个移动端判断代码可以针对IE内核webkit内核判断，还能判断语言

<script type="text/javascript">
//懒人建站http://www.51xuediannao.com/
//判断访问终端
var browser={
    versions:function(){
        var u = navigator.userAgent, app = navigator.appVersion;
        return {
            trident: u.indexOf('Trident') > -1, //IE内核
            presto: u.indexOf('Presto') > -1, //opera内核
            webKit: u.indexOf('AppleWebKit') > -1, //苹果、谷歌内核
            gecko: u.indexOf('Gecko') > -1 && u.indexOf('KHTML') == -1,//火狐内核
            mobile: !!u.match(/AppleWebKit.*Mobile.*/), //是否为移动终端
            ios: !!u.match(/(i[^;]+;( U;)? CPU.+Mac OS X/), //ios终端
            android: u.indexOf('Android') > -1 || u.indexOf('Linux') > -1, //android终端或者uc浏览器
            iPhone: u.indexOf('iPhone') > -1 , //是否为iPhone或者QQHD浏览器
            iPad: u.indexOf('iPad') > -1, //是否iPad
            webApp: u.indexOf('Safari') == -1 //是否web应该程序，没有头部与底部
        };
    }(),
    language:(navigator.browserLanguage || navigator.language).toLowerCase();//检测浏览器语言
}

//browser.versions.trident返回真假，真则是IE内核，以此类推browser.versions.webKit是否为谷歌内核
//判断是否IE内核
if(browser.versions.trident){
    alert("is IE");
}

//判断是否webKit内核
if(browser.versions.webKit){
    alert("is webKit");
}

//判断是否移动端
if(browser.versions.mobile||browser.versions.android||browser.versions.ios){
    alert("移动端");
}

</script>

微软office365对手机等移动端设备判断的js代码

<script type="text/javascript">
//懒人建站http://www.51xuediannao.com/
   (function (a) {
       window.isMobile = false;
       var windowWidth = window.outerWidth;
       if (/.*windows phone.*/i.test(a)){
           window.location.href = "mobile/index.html";
       }
       if (/(android|ipad|playbook|silk|bbd+|meego).+mobile|avantgo|bada/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)/|plucker|pocket|psp|series(4|6)0|symbian|treo|up.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino/i.test(a) || /1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw-(n|u)|c55/|capi|ccwa|cdm-|cell|chtm|cldc|cmd-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc-s|devi|dica|dmob|do(c|p)o|ds(12|-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(-|_)|g1 u|g560|gene|gf-5|g-mo|go(.w|od)|gr(ad|un)|haie|hcit|hd-(m|p|t)|hei-|hi(pt|ta)|hp( i|ip)|hs-c|ht(c(-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i-(20|go|ma)|i230|iac( |-|/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |/)|klon|kpt |kwc-|kyo(c|k)|le(no|xi)|lg( g|/(k|l|u)|50|54|-[a-w])|libw|lynx|m1-w|m3ga|m50/|ma(te|ui|xo)|mc(01|21|ca)|m-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|-([1-8]|c))|phil|pire|pl(ay|uc)|pn-2|po(ck|rt|se)|prox|psio|pt-g|qa-a|qc(07|12|21|32|60|-[2-7]|i-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55/|sa(ge|ma|mm|ms|ny|va)|sc(01|h-|oo|p-)|sdk/|se(c(-|0|1)|47|mc|nd|ri)|sgh-|shar|sie(-|m)|sk-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h-|v-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl-|tdg-|tel(i|m)|tim-|t-mo|to(pl|sh)|ts(70|m-|m3|m5)|tx-9|up(.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas-|your|zeto|zte-/i.test(a.substr(0, 4))) {
           window.isMobile = true;
           if (windowWidth <= 720)window.location.href = "mobile/index.html"
       } else {
           if (/.*arm;.*touch;.*wpdesktop.*/i.test(a))window.location.href = "mobile/index.html"
       }
   })(navigator.userAgent || navigator.vendor || window.opera);
</script>

使用device.js插件来判断是否移动端设备

插件GIT地址：https://github.com/matthewhudson/device.js

示例：
if(device.mobile()){
   alert('移动端')
}

device.js会在你的html节点上追加相应的设备样式

移动端设备方向判断