如何使用JavaScript检测Internet Explorer（IE）和Microsoft Edge？ [英] How can I detect Internet Explorer (IE) and Microsoft Edge using JavaScript?

问题描述

我周围环顾了很多，我明白有很多方法可以检测Internet Explorer。我的问题是这样的：我在HTML文档上有一个区域，点击时调用与任何类型的Internet Explorer不兼容的JavaScript函数。我希望检测是否正在使用IE，如果是，请将变量设置为true。问题是，我正在使用记事本++编写我的代码，并且当我在浏览器中运行HTML代码时，没有任何方法可以检测IE炒锅。我认为问题在于我正在使用记事本++。我需要能够检测IE，所以基于变量，我可以禁用该网站的该区域。我试过这个：

  / *在这里写JavaScript * / 
 var isIE10 = false; 
 $ b $ if（navigator.userAgent.indexOf（MSIE 10）> -1）{
 //这是Internet Explorer 10 
 isIE10 = true; 
 window.alert（isIE10）; 
} 
 
 var isIE =（navigator.userAgent.indexOf（MSIE）！= -1）; 
 
 if（isIE）{
 if（！isIE10）{
 window.location ='pages / core / ie.htm'; 
} 
} 
  

但它不起作用。我如何检测IE记事本++？这就是我测试HTML的原因，但我需要一种可以在网站上使用的方法。帮助！

编辑

我注意到有人将此标记为重复的，这是可以理解的。我想我不清楚。我不能使用JQuery的答案，所以这不是一个重复的，因为我要求一个香草JS的答案。

编辑＃2还有一种方法来检测边缘浏览器？

解决方案

我不知道为什么，但我没有像其他人一样在userAgent中看到边缘谈论，所以我不得不采取另一条路线，可能会帮助一些人。

而不是看着navigator.userAgent，我看着navigator.appName来区分是否它是IE <= 10或IE11和Edge。 IE11和Edge使用Netscape的appName，而其他所有迭代都使用Microsoft Internet Explorer。

在我们确定浏览器是IE11或Edge之后，我再看看navigator.appVersion。我注意到在IE11中，字符串很长，其中有很多信息。我随意挑选了三叉戟这个词，它绝对不在导航器的边缘.app版本中。测试这个词允许我区分这两个。

下面是一个函数，它将返回用户所在的Internet Explorer的数值。

祝你好运，我希望这有助于你！

 函数Check_Version（）{
 var rv = -1; //返回值假定失败。 
 
 if（navigator.appName =='Microsoft Internet Explorer'）{
 
 var ua = navigator.userAgent，
 re = new RegExp（MSIE（[ 0-9] {1，} [\\.0-9] {0，}））; 
 
 if（re.exec（ua）！== null）{
 rv = parseFloat（RegExp。$ 1）; 
 
 
 else if（navigator.appName ==Netscape）{
 ///在IE 11中navigator.appVersion表示'trident'
 / //在Edge中navigator.appVersion不会说三叉戟
 if（navigator.appVersion.indexOf（'Trident'）=== -1）rv = 12; 
 else rv = 11; 
} 
 
 return rv; 
} 
  

I have looked around a lot, and I understand that there are a lot of ways to detect internet explorer. My problem is this: I have an area on my HTML doc, that when clicked, calls a javascript function that is incompatible with internet explorer of any kind. I wish to detect if IE is being used, and if so, set a variable as true. The problem is, I am writing my code out of notepad ++, and when I run the HTML code in browser, none of the methods to detect IE wok. I think the problem is that I am running it out of notepad++. I need to be able to detect IE, so that based on the variable, I can disable that area of the site. I have tried this:

/* Write JavaScript here */
var isIE10 = false;

if (navigator.userAgent.indexOf("MSIE 10") > -1) {
    // this is internet explorer 10
    isIE10 = true;
   window.alert(isIE10);
}

var isIE = (navigator.userAgent.indexOf("MSIE") != -1);

if(isIE){
    if(!isIE10){
    window.location = 'pages/core/ie.htm';
    }
}

but it doesn't work. How can i detect IE out of notepad++? that's what I'm testing the HTML out of, but I need a method that'll work with that and on a website. HELP!

edit

I notice someone marked this as a duplicate, and that is understandable. I suppose I wasnt clear. I cannot use a JQuery answer, so this is not a duplicate as I am asking for a vanilla JS answer.

Edit #2 is there also a way to detect the edge browser?

解决方案

I don't know why, but I'm not seeing "Edge" in the userAgent like everyone else is talking about, so I had to take another route that may help some people.

Instead of looking at the navigator.userAgent, I looked at navigator.appName to distinguish if it was IE<=10 or IE11 and Edge. IE11 and Edge use the appName of "Netscape", while every other iteration uses "Microsoft Internet Explorer".

After we determine that the browser is either IE11 or Edge, I then looked to navigator.appVersion. I noticed that in IE11 the string was rather long with a lot of information inside of it. I arbitrarily picked out the word "Trident", which is definitely not in the navigator.appVersion for Edge. Testing for this word allowed me to distinguish the two.

Below is a function that will return a numerical value of which Internet Explorer the user is on. If on Microsoft Edge it returns the number 12.

Good luck and I hope this helps!

function Check_Version(){
    var rv = -1; // Return value assumes failure.

    if (navigator.appName == 'Microsoft Internet Explorer'){

       var ua = navigator.userAgent,
           re  = new RegExp("MSIE ([0-9]{1,}[\\.0-9]{0,})");

       if (re.exec(ua) !== null){
         rv = parseFloat( RegExp.$1 );
       }
    }
    else if(navigator.appName == "Netscape"){                       
       /// in IE 11 the navigator.appVersion says 'trident'
       /// in Edge the navigator.appVersion does not say trident
       if(navigator.appVersion.indexOf('Trident') === -1) rv = 12;
       else rv = 11;
    }       

    return rv;          
}

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