如何判断H5移动端是IOS还是安卓

//判断是否是安卓还是ios
function isAndroid_ios(){
var u = navigator.userAgent, app = navigator.appVersion;
var isAndroid = u.indexOf('Android') > -1 || u.indexOf('Linux') > -1; //android终端或者uc浏览器
var isiOS = !!u.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/); //ios终端
return isAndroid==true?true:false;
}

if(isAndroid_ios()){

//安卓

}else{

//ios

}