Javascript - 检测浏览器版本 [英] Javascript - detecting browser version

问题描述

我知道这不是最可靠的方式，但我真的没有太多其他选择.我基本上需要检测访问我网站的浏览器和版本.如果是某个浏览器/版本，它会显示一条消息.这是针对 TLS 问题，即某些浏览器版本不会显示 https 页面.

I know this is not the most reliable way, but I don't really have many other choices. I essentially need to detect what browser and version visits my website. If it is a certain browser/version, it will display a message. This is for the TLS issue, whereby certain browser versions will not display a https page.

无论如何，目前我有类似以下内容

Anyways, at the moment I have something like the following

function getBrowserInfo()
{
    var ua = navigator.userAgent, tem,
        M = ua.match(/(opera|chrome|safari|firefox|msie|trident(?=\/))\/?\s*(\d+)/i) || [];
    if(/trident/i.test(M[1]))
    {
        tem=  /\brv[ :]+(\d+)/g.exec(ua) || [];
        return 'IE '+(tem[1] || '');
    }
    if(M[1]=== 'Chrome')
    {
        tem= ua.match(/\b(OPR|Edge)\/(\d+)/);
        if(tem!= null) return tem.slice(1).join(' ').replace('OPR', 'Opera');
    }
    M = M[2]? [M[1], M[2]]: [navigator.appName, navigator.appVersion, '-?'];
    if((tem= ua.match(/version\/(\d+)/i))!= null)
        M.splice(1, 1, tem[1]);
    return M.join(' ');
}

var browserInfo = getBrowserInfo();
browserInfo = browserInfo.split(" ");

$(function () {
    alert(browserInfo);
    if(browserInfo[0] == 'Firefox' && browserInfo[1] < 27) {
        alert("Firefox");
    }
    if(browserInfo[0] == 'Chrome' && browserInfo[1] < 22) {
        alert("Chrome");
    }
    if(browserInfo[0] == 'IE' && browserInfo[1] < 11) {
        alert("IE");
    }
    if(browserInfo[0] == 'Safari' && browserInfo[1] < 11) {
        alert("Safari");
    }
    if(browserInfo[0] == 'Opera' && browserInfo[1] < 14) {
        alert("Safari");
    }
});

我关心的一件事是字符串的拆分，以防浏览器返回不同的格式.此外，我认为所有这些 if 语句都是多余的，但我想不出更有效的方法来做到这一点.

One thing that concerns me is the splitting of the string, incase a browser returns a different format. Additionally, I think all of these if statements are redundant, but I cant think of a more efficient way to do this.

基本上，我正在寻找有关检测浏览器及其版本的最佳方法的建议，以便我可以为该浏览器显示自定义消息.

Essentially, I am looking for advice as to the best way to detect a browser, and its version, so I can display a custom message for that browser.

谢谢

推荐答案

您似乎在使用 jQuery.您可以使用 $.browser 检测浏览器版本，但从 1.9.1 版本开始不推荐使用该功能.

It seems like you're using jQuery. You could detect the browser version using $.browser, but that feature is deprecated starting from version 1.9.1.

我建议使用这个 jQuery 插件，它支持浏览器类型 &版本检测:https://github.com/gabceb/jquery-browser-plugin

I would advise using this jQuery-plugin, which supports browser type & version detection: https://github.com/gabceb/jquery-browser-plugin

使用此插件，您可以使用此代码测试浏览器供应商:

Using this plugin, you can test for browser vendors using this code:

if($.browser.msie) {
  alert('ie');
}

if($.browser.mozilla) {
  alert('firefox');
}

...

如果您想检查浏览器的版本，可以使用以下代码:

If you would like to check for the version of the browser, you could use this code:

$.browser.version

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