判断浏览器是否是手机端

在项目中经常会有需要判断浏览器是否是手机端还是PC端，这里有2个函数 供参考：

let isMobile = function() {
	let userAgentInfo = navigator.userAgent.toLowerCase();
	let Agents = new Array('android', 'iphone', 'symbianos', 'windows phone', 'ipad', 'ipod');
	let flag = false;
	for (let v = 0; v < Agents.length; v++) {
		if (userAgentInfo.indexOf(Agents[v]) !== -1) {
			flag = true;
			break;
		}
	}
	return flag;
};

用法：

let ismobileBool = isMobile(); 

//true 代表是手机端，false代表是PC端

另外一个函数也是可以 用作判断

var browserRedirect=function () {
            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";

            if (bIsIpad || bIsIphoneOs || bIsMidp || bIsUc7 || bIsUc || bIsAndroid || bIsCE || bIsWM) {
                //如果是上述设备就会以手机域名打开
                return 'mobile';
            } else {
                //否则就是电脑域名打开
                return 'pc';
            }
        }

用法为： var browser =  browserRedirect();

//mobile 为手机， pc为PC端