blocks|key|3045479|text|当你更新你的代码时，jQuery迁移是created+to+allow+for+backwards+compatibility。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|3045480|https://github.com/jquery/jquery-migrate|3045481|作为额外的好处，它会在您使用不推荐使用的函数时记录这些函数。在你解决问题的时候，我会试一试。此外，您还应该为您的站点设置特定版本的jQuery。升级很好，但请确保在将这些升级投入生产之前测试这些升级。如果您使用的是CDN，您仍然可以在文件名中指定特定版本。|3045482|现在，您的插件不需要jQuery+来满足您的要求。查看the+navigator+object。|style|CODE|3045483|appCodeName:+"Mozilla"
appName:+"Netscape"
appVersion:+"5.0+(Macintosh;+Intel+Mac+OS+X+10_6_8)+AppleWebKit/537.17+(KHTML,+like+Gecko)+Chrome/24.0.1312.52+Safari/537.17"
cookieEnabled:+true
doNotTrack:+null
geolocation:+Geolocation
language:+"en-US"
mimeTypes:+MimeTypeArray
onLine:+true
platform:+"MacIntel"
plugins:+PluginArray
product:+"Gecko"
productSub:+"20030107"
userAgent:+"Mozilla/5.0+(Macintosh;+Intel+Mac+OS+X+10_6_8)+AppleWebKit/537.17+(KHTML,+like+Gecko)+Chrome/24.0.1312.52+Safari/537.17"
vendor:+"Google+Inc."
vendorSub:+""|code-block|syntax|javascript|3045484|entityMap|0|LINK|mutability|MUTABLE|url|http://blog.jquery.com/2013/01/15/jquery-1-9-final-jquery-2-0-beta-migrate-final-released/|1|2|https://developer.mozilla.org/en-US/docs/DOM/window.navigator^0|J|18|0|0|0|14|1|0|0|V|9|R|K|2|0|0^^$0|@$1|2|3|4|5|6|7|11|8|@]|9|@$A|12|B|13|1|14]]|C|$]]|$1|D|3|E|5|6|7|15|8|@]|9|@$A|16|B|17|1|18]]|C|$]]|$1|F|3|G|5|6|7|19|8|@]|9|@]|C|$]]|$1|H|3|I|5|6|7|1A|8|@$A|1B|B|1C|J|K]]|9|@$A|1D|B|1E|1|1F]]|C|$]]|$1|L|3|M|5|N|7|1G|8|@]|9|@]|C|$O|P]]|$1|Q|3|-4|5|6|7|1H|8|@]|9|@]|C|$]]]|R|$S|$5|T|U|V|C|$W|X]]|Y|$5|T|U|V|C|$W|E]]|Z|$5|T|U|V|C|$W|10]]]]

jQuery Migrate was <a href="http://blog.jquery.com/2013/01/15/jquery-1-9-final-jquery-2-0-beta-migrate-final-released/">created to allow for backwards compatibility</a> while you update your code.

<a href="https://github.com/jquery/jquery-migrate">https://github.com/jquery/jquery-migrate</a>

As a bonus, it logs deprecated functions as you use them. I would give it a try while you resolve the problems. Also, you should be setting a specific version of jQuery for your sites. It's good to upgrade, but be sure to test those upgrades before putting them in production. If you are using a CDN, you can still specify a specific version in the file name.

Now, you don't need a jQuery plugin for what you are asking. Check out <a href="https://developer.mozilla.org/en-US/docs/DOM/window.navigator">the <code>navigator</code> object</a>.

<pre><code>appCodeName: "Mozilla"
appName: "Netscape"
appVersion: "5.0 (Macintosh; Intel Mac OS X 10_6_8) AppleWebKit/537.17 (KHTML, like Gecko) Chrome/24.0.1312.52 Safari/537.17"
cookieEnabled: true
doNotTrack: null
geolocation: Geolocation
language: "en-US"
mimeTypes: MimeTypeArray
onLine: true
platform: "MacIntel"
plugins: PluginArray
product: "Gecko"
productSub: "20030107"
userAgent: "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_8) AppleWebKit/537.17 (KHTML, like Gecko) Chrome/24.0.1312.52 Safari/537.17"
vendor: "Google Inc."
vendorSub: ""
</code></pre>

blocks|key|198875|text|你可以不更新，直到你离开折旧的方法。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|198876|你真的不应该在没有指定版本号的情况下包含来自CDN的jquery，这在某种程度上违背了使用CDN的目的(没有缓存)。|198877|以下是支持$.browser的最新版本jQuery的链接：|198878|http://code.jquery.com/jquery-1.8.3.min.js|offset|length|198879|只需用该链接替换您的jquery.js+src，您的代码将继续运行，直到您准备好继续前进并停止使用折旧的特性。|198880|注意:+Fancybox2仍然使用$.browser，这是自更新以来我见过的最常见的一个。|198881|更新:+Slickgrid仍在使用$.browser，截至2013年2月11日未更新|style|CODE|198882|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|0|0|16|0|0|0|0|H|9|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Z|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|10|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|11|8|@]|9|@$H|12|I|13|1|14]]|A|$]]|$1|J|3|K|5|6|7|15|8|@]|9|@]|A|$]]|$1|L|3|M|5|6|7|16|8|@]|9|@]|A|$]]|$1|N|3|O|5|6|7|17|8|@$H|18|I|19|P|Q]]|9|@]|A|$]]|$1|R|3|-4|5|6|7|1A|8|@]|9|@]|A|$]]]|S|$T|$5|U|V|W|A|$X|G]]]]

You could just not update until you move away from depreciated methods.

You really shouldn't be including jquery from a CDN without specifying a version number anyway, it in a way defeats the purpose of using a CDN (no cacheing).

Here's a link to the latest version of jQuery that supported $.browser: 

<a href="http://code.jquery.com/jquery-1.8.3.min.js" rel="nofollow">http://code.jquery.com/jquery-1.8.3.min.js</a>

simply replace your jquery.js src with that link and your code will continue to run until you are ready to move forward and stop using depreciated features.

Note: Fancybox2 still uses $.browser, that's the most common one I've seen so far since the update.

Update: Slickgrid is still using <code>$.browser</code>, no update as of 02/11/2013

blocks|key|203613|text|将以下代码放入您的站点中(如js文件，或在jQuery的代码之后...)：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|203614|var+matched,+browser;

//+Use+of+jQuery.browser+is+frowned+upon.
//+More+details:+http://api.jquery.com/jQuery.browser
//+jQuery.uaMatch+maintained+for+back-compat
jQuery.uaMatch+=+function(+ua+)+{
++++ua+=+ua.toLowerCase();

++++var+match+=+/(chrome)[+\/]([\w.]%2B)/.exec(+ua+)+%7C%7C
++++++++/(webkit)[+\/]([\w.]%2B)/.exec(+ua+)+%7C%7C
++++++++/(opera)(?:.*version%7C)[+\/]([\w.]%2B)/.exec(+ua+)+%7C%7C
++++++++/(msie)+([\w.]%2B)/.exec(+ua+)+%7C%7C
++++++++ua.indexOf("compatible")+<+0+&&+/(mozilla)(?:.*?+rv:([\w.]%2B)%7C)/.exec(+ua+)+%7C%7C
++++++++[];

++++return+{
++++++++browser:+match[+1+]+%7C%7C+"",
++++++++version:+match[+2+]+%7C%7C+"0"
++++};
};

matched+=+jQuery.uaMatch(+navigator.userAgent+);
browser+=+{};

if+(+matched.browser+)+{
++++browser[+matched.browser+]+=+true;
++++browser.version+=+matched.version;
}

//+Chrome+is+Webkit,+but+Webkit+is+also+Safari.
if+(+browser.chrome+)+{
++++browser.webkit+=+true;
}+else+if+(+browser.webkit+)+{
++++browser.safari+=+true;
}

jQuery.browser+=+browser;|code-block|syntax|javascript|203615|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Put this code in your site (like js file, or after code of jQuery...):

<pre><code>var matched, browser;

// Use of jQuery.browser is frowned upon.
// More details: http://api.jquery.com/jQuery.browser
// jQuery.uaMatch maintained for back-compat
jQuery.uaMatch = function( ua ) {
 ua = ua.toLowerCase();

 var match = /(chrome)[ \/]([\w.]+)/.exec( ua ) ||
 /(webkit)[ \/]([\w.]+)/.exec( ua ) ||
 /(opera)(?:.*version|)[ \/]([\w.]+)/.exec( ua ) ||
 /(msie) ([\w.]+)/.exec( ua ) ||
 ua.indexOf("compatible") &lt; 0 &amp;&amp; /(mozilla)(?:.*? rv:([\w.]+)|)/.exec( ua ) ||
 [];

 return {
 browser: match[ 1 ] || "",
 version: match[ 2 ] || "0"
 };
};

matched = jQuery.uaMatch( navigator.userAgent );
browser = {};

if ( matched.browser ) {
 browser[ matched.browser ] = true;
 browser.version = matched.version;
}

// Chrome is Webkit, but Webkit is also Safari.
if ( browser.chrome ) {
 browser.webkit = true;
} else if ( browser.webkit ) {
 browser.safari = true;
}

jQuery.browser = browser;
</code></pre>

blocks|key|2832971|text|当我遇到同样的问题时，我使用了以下代码：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2832972|<script+type="text/javascript">
+$(document).ready(function()+{
++++//if+(!$.browser.webkit+&&+!+$.browser.mozilla)+{+//depricated
++++if+(!navigator.userAgent.match(/mozilla/i)+&&+
++++++++!+navigator.userAgent.match(/webkit/i)+){
++++++++alert('Let+me+tell+you+about+Mozilla');
++++}
+});
</script>|code-block|syntax|javascript|2832973|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

I've used the following code when I hit the same issue:

<pre><code>&lt;script type="text/javascript"&gt;
 $(document).ready(function() {
 //if (!$.browser.webkit &amp;&amp; ! $.browser.mozilla) { //depricated
 if (!navigator.userAgent.match(/mozilla/i) &amp;&amp; 
 ! navigator.userAgent.match(/webkit/i) ){
 alert('Let me tell you about Mozilla');
 }
 });
&lt;/script&gt;
</code></pre>

blocks|key|201271|text|试试Conditionizr|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|201272|希望这能有所帮助:)|201273|entityMap|0|LINK|mutability|MUTABLE|url|http://conditionizr.com/^0|2|C|0|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@$A|O|B|P|1|Q]]|C|$]]|$1|D|3|E|5|6|7|R|8|@]|9|@]|C|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|C|$]]]|G|$H|$5|I|J|K|C|$L|M]]]]

Try <a href="http://conditionizr.com" rel="nofollow">Conditionizr</a>

Hope this Helps :)

blocks|key|2833006|text|我使用了Alexx+Roche回答的以下代码，但我希望检测MSIE，因此：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2833007|<script+type="text/javascript">
+++$(document).ready(function()+{
++++++if+(navigator.userAgent.match(/msie/i)+){
++++++++alert('I+am+an+old+fashioned+Internet+Explorer');
++++++}
+++});
</script>|code-block|syntax|javascript|2833008|希望它能帮上忙！|2833009|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

I've use the following code answered by Alexx Roche, but i wanted to detect MSIE so:

<pre><code>&lt;script type="text/javascript"&gt;
 $(document).ready(function() {
 if (navigator.userAgent.match(/msie/i) ){
 alert('I am an old fashioned Internet Explorer');
 }
 });
&lt;/script&gt;
</code></pre>

hope it helps!

blocks|key|198911|text|var+browser+=+{
++++++++chrome:+false,
++++++++mozilla:+false,
++++++++opera:+false,
++++++++msie:+false,
++++++++safari:+false
++++};
++++var+sUsrAg+=+navigator.userAgent;
++++if(sUsrAg.indexOf("Chrome")+>+-1)+{
++++++++browser.chrome+=+true;
++++}+else+if+(sUsrAg.indexOf("Safari")+>+-1)+{
++++++++browser.safari+=+true;
++++}+else+if+(sUsrAg.indexOf("Opera")+>+-1)+{
++++++++browser.opera+=+true;
++++}+else+if+(sUsrAg.indexOf("Firefox")+>+-1)+{
++++++++browser.mozilla+=+true;
++++}+else+if+(sUsrAg.indexOf("MSIE")+>+-1)+{
++++++++browser.msie+=+true;
++++}
++++console.log(browser.msie);|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|198912|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>var browser = {
 chrome: false,
 mozilla: false,
 opera: false,
 msie: false,
 safari: false
 };
 var sUsrAg = navigator.userAgent;
 if(sUsrAg.indexOf("Chrome") &gt; -1) {
 browser.chrome = true;
 } else if (sUsrAg.indexOf("Safari") &gt; -1) {
 browser.safari = true;
 } else if (sUsrAg.indexOf("Opera") &gt; -1) {
 browser.opera = true;
 } else if (sUsrAg.indexOf("Firefox") &gt; -1) {
 browser.mozilla = true;
 } else if (sUsrAg.indexOf("MSIE") &gt; -1) {
 browser.msie = true;
 }
 console.log(browser.msie);
</code></pre>

blocks|key|3045625|text|if(!$.browser){
++++$.browser={chrome:false,mozilla:false,opera:false,msie:false,safari:false};
++++var+ua=navigator.userAgent;
++++++++$.each($.browser,function(c,a){
++++++++$.browser[c]=((new+RegExp(c,'i').test(ua)))?true:false;
++++++++++++if($.browser.mozilla+&&+c+=='mozilla'){$.browser.mozilla=((new+RegExp('firefox','i').test(ua)))?true:false;};
++++++++++++if($.browser.chrome+&&+c+=='safari'){$.browser.safari=false;};
++++++++});
};|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|3045626|http://jsfiddle.net/R3AAX/3/|unstyled|offset|length|3045627|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|S|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|Q|8|@]|9|@$G|R|H|S|1|T]]|A|$]]|$1|I|3|-4|5|F|7|U|8|@]|9|@]|A|$]]]|J|$K|$5|L|M|N|A|$O|E]]]]

<pre><code>if(!$.browser){
 $.browser={chrome:false,mozilla:false,opera:false,msie:false,safari:false};
 var ua=navigator.userAgent;
 $.each($.browser,function(c,a){
 $.browser[c]=((new RegExp(c,'i').test(ua)))?true:false;
 if($.browser.mozilla &amp;&amp; c =='mozilla'){$.browser.mozilla=((new RegExp('firefox','i').test(ua)))?true:false;};
 if($.browser.chrome &amp;&amp; c =='safari'){$.browser.safari=false;};
 });
};
</code></pre>

<a href="http://jsfiddle.net/R3AAX/3/" rel="nofollow">http://jsfiddle.net/R3AAX/3/</a>

blocks|key|198917|text|我将逻辑从jQuery.browser抽象到一个插件jquery.browser中。该插件是在麻省理工学院许可下发布的。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|198918|我还添加了对IE11、Opera+Webkit和安卓检测的支持。|198919|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/gabceb/jquery-browser-plugin^0|Q|E|0|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@$A|O|B|P|1|Q]]|C|$]]|$1|D|3|E|5|6|7|R|8|@]|9|@]|C|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|C|$]]]|G|$H|$5|I|J|K|C|$L|M]]]]

I abstracted the logic from jQuery.browser into a plugin <a href="https://github.com/gabceb/jquery-browser-plugin">jquery.browser</a>. The plugin is released under the MIT license.

I've also added support for IE11, Opera Webkit and Android detection.

blocks|key|3045660|text|如果你想要的是你的第三方jQuery插件能够使用jQuery.browser.msie，这里有一行代码。只需将其包含在jQuery之后。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3045661|jQuery.browser+=+jQuery.browser+%7C%7C+{msie:+navigator.userAgent.match(/msie/i)+?+true+:+false};|code-block|syntax|javascript|3045662|这是最愚蠢的修复，但它是我所需要的，它确实有效，所以给你！|3045663|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

If all you want is your 3rd party jQuery plugins to be able to use jQuery.browser.msie, here's a one-liner. Just include it after jQuery.

<pre><code>jQuery.browser = jQuery.browser || {msie: navigator.userAgent.match(/msie/i) ? true : false};
</code></pre>

This is the dumbest-possible fix, but it's all I needed, and it does work, so here you go!

blocks|key|198937|text|添加到这个讨论中。我刚刚想出了一个jquery+$.browser插件，它不是“检测”，而只是将用户代理解析成一个易于使用的对象。可以很容易地应用进一步的逻辑来进一步分解和解析特定的浏览器和平台。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|198938|我在useragents+found+here:+UserAgentString.com上得到了非常可靠的结果。我甚至包括了ie11的版本检测(接近底部)。|offset|length|198939|//The+following+code+is+by+no+means+perfect,+nor+is+it+meant+to+be+a+standalone+'detection'+plugin.+
//It+demonstrates+parsing+the+useragent+string+into+an+easy+to+manage+object.+
//Even+if+it+does+make+detection+rediculously+easy..+:)

//Because+this+regex+makes+no+assumptions+in+advance.
//IMO,+It's+compatibilty+and+maintainability+is+much+higher+than+those+based+on+static+identifiers.

/*
++uaMatch+replacement+that+parses+a+useragent+string+into+an+object
++useragent+segments+can+be+Name+Value+OR+Name/Value+OR+Name

++Segment:+Name+Value
++++Name:+parsed+to+the+last+whitespace+character
++++Value:+value+after+the+last+whitespace+character
++++Matches:+(.NET+CLR)+(#.##),+Android+2.3.4,+etc
++++Note:+this+regex+can+have+leading/trailing+whitespace+(trimmed+for+object+properties)

++Segment:+Name/Value
++++Matches:+all+values+matching+Name/Value
++++Example:+Firefox/24.0,+Safari/533.1,+Version/12.1,+etc

++Segment:+Name
++++Matches:+identifiers+that+hold+no+values+(value+of+'true'+is+implied)
++++Example:+Macintosh,+Linux,+Windows,+KHTML,+U,+etc


+++WARNING:+not+necessarily+compatible+with+jQuery's+$.browser+implementation.
+++-+not+recommended+as+a+replacement+for+plugins+that+require+it+to+function.
*/
(function+($)+{

++++var+ua+=+navigator.userAgent.toLowerCase();

++++var+regex+=+/compatible;+([\w.%2B]%2B)[+\/]([\w.%2B]*)%7C([\w+.%2B]%2B)[:+\/]([\w.%2B]%2B)%7C([\w.%2B]%2B)/g;
++++var+match+=+regex.exec(ua);

++++var+browser+=+{+};

++++while+(match+!=+null)+{
++++++++var+prop+=+{};

++++++++if+(match[1])+{
++++++++++prop.type+=+match[1];
++++++++++prop.version+=+match[2];
++++++++}
++++++++else+if+(match[3])+{
++++++++++prop.type+=+match[3];
++++++++++prop.version+=+match[4];
++++++++}
++++++++else+{
++++++++++prop.type+=+match[5];
++++++++}

++++++++//+some+expressions+have+leading+whitespace+(i+couldn't+avoid+this+without+a+more+complex+expression)
++++++++//+trim+them+and+get+rid+of+'.'+('+.NET+CLR'+=+'net_clr')+
++++++++prop.type+=+$.trim(prop.type).replace(".","").replace("+","_");+
++++++++var+value+=+prop.version+?+prop.version+:+true;

++++++++if+(browser[prop.type])+{
++++++++++++if+(!$.isArray(browser[prop.type]))
++++++++++++++++browser[prop.type]+=+new+Array(browser[prop.type]);

++++++++++++browser[prop.type].push(value);
++++++++}++++
++++++++else+browser[prop.type]+=+value;

++++++++match+=+regex.exec(ua);
++++}

++++for+(var+i+in+browser)
++++++++if+(i.indexOf("mac")+>+-1)
++++++++++++browser.mac+=+true;

++++if+(browser.windows_nt+&&+!browser.windows)
++++++++browser.windows+=+true;

++++//put+known+browsers+into+the+'version'+property+for+'some'+jquery+compatibility

++++//for+sake+of+argument+chromium+'is'+chrome
++++if+(browser.chromium+&&+!browser.chrome)
++++++++browser.chrome+=+browser.chromium;

++++//chrome+/+safari+/+webkit
++++if+(browser.chrome)+{
++++++++browser.version+=+browser.chrome;
++++}
++++else+if+(browser.safari)+{
++++++++browser.version+=+browser.safari;
++++}
++++else+{
++++++++if+(browser.applewebkit)
++++++++++++browser.webkit+=+browser.applewebkit;

++++++++if+(browser.webkit)
++++++++++++browser.version+=+browser.webkit;
++++}

++++//firefox+/+gecko
++++if+(browser.firefox)+{
++++++++if+(browser.rv)
++++++++++++browser.version+=+browser.rv;

++++++++else+browser.version+=+browser.firefox;
++++}
++++else+if+(browser.gecko)+{
++++++++if+(browser.rv)
++++++++++++browser.version+=+browser.rv;

++++++++else+browser.version+=+browser.gecko;
++++}

++++//opera
++++if+(browser.opera+&&+!browser.version)
++++++++browser.version+=+browser.opera;

++++//msie
++++if+(browser.trident+&&+browser.rv)+//ie11
++++++++browser.msie+=+browser.rv;

++++if+(browser.msie)
++++++++browser.version+=+browser.msie;

++++$.browser+=+browser;//Rename+to+reduce+confliction?

++++//WAS+USED+FOR+TESTING+&+DISCOVERY+(very+useful)
++++//TODO:+remove+line+below
++++alert(JSON.stringify($.browser));

})+(jQuery);|code-block|syntax|javascript|198940|在Internet+Explorer10上，JSON.stringify会输出类似这样的输出：|198941|{"mozilla":"5.0","msie":"10.0","windows_nt":"6.2","trident":"6.0","net4.0e":true,"net4.0c":true,"net_clr":["3.5.30729","2.0.50727","3.0.30729"],"windows":true,"version":"10.0"}|198942|entityMap|0|LINK|mutability|MUTABLE|url|http://www.useragentstring.com/pages/All/^0|0|J|P|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|X|8|@]|9|@$D|Y|E|Z|1|10]]|A|$]]|$1|F|3|G|5|H|7|11|8|@]|9|@]|A|$I|J]]|$1|K|3|L|5|6|7|12|8|@]|9|@]|A|$]]|$1|M|3|N|5|H|7|13|8|@]|9|@]|A|$I|J]]|$1|O|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|V]]]]

To add to this discussion. I just came up with a jquery $.browser plugin that, instead of 'detection', just merely parses the user agent into an easy-to-use object. Further logic can easily be applied to further break down and parse specific browsers and platforms. 

I have had very reliable results on useragents found <a href="http://www.useragentstring.com/pages/All/" rel="nofollow">here: UserAgentString.com</a>. I even included the version detection for ie11 (near the bottom).

<pre><code>//The following code is by no means perfect, nor is it meant to be a standalone 'detection' plugin. 
//It demonstrates parsing the useragent string into an easy to manage object. 
//Even if it does make detection rediculously easy.. :)

//Because this regex makes no assumptions in advance.
//IMO, It's compatibilty and maintainability is much higher than those based on static identifiers.

/*
 uaMatch replacement that parses a useragent string into an object
 useragent segments can be Name Value OR Name/Value OR Name

 Segment: Name Value
 Name: parsed to the last whitespace character
 Value: value after the last whitespace character
 Matches: (.NET CLR) (#.##), Android 2.3.4, etc
 Note: this regex can have leading/trailing whitespace (trimmed for object properties)

 Segment: Name/Value
 Matches: all values matching Name/Value
 Example: Firefox/24.0, Safari/533.1, Version/12.1, etc

 Segment: Name
 Matches: identifiers that hold no values (value of 'true' is implied)
 Example: Macintosh, Linux, Windows, KHTML, U, etc


 WARNING: not necessarily compatible with jQuery's $.browser implementation.
 - not recommended as a replacement for plugins that require it to function.
*/
(function ($) {

 var ua = navigator.userAgent.toLowerCase();

 var regex = /compatible; ([\w.+]+)[ \/]([\w.+]*)|([\w .+]+)[: \/]([\w.+]+)|([\w.+]+)/g;
 var match = regex.exec(ua);

 var browser = { };

 while (match != null) {
 var prop = {};

 if (match[1]) {
 prop.type = match[1];
 prop.version = match[2];
 }
 else if (match[3]) {
 prop.type = match[3];
 prop.version = match[4];
 }
 else {
 prop.type = match[5];
 }

 // some expressions have leading whitespace (i couldn't avoid this without a more complex expression)
 // trim them and get rid of '.' (' .NET CLR' = 'net_clr') 
 prop.type = $.trim(prop.type).replace(".","").replace(" ","_"); 
 var value = prop.version ? prop.version : true;

 if (browser[prop.type]) {
 if (!$.isArray(browser[prop.type]))
 browser[prop.type] = new Array(browser[prop.type]);

 browser[prop.type].push(value);
 } 
 else browser[prop.type] = value;

 match = regex.exec(ua);
 }

 for (var i in browser)
 if (i.indexOf("mac") &gt; -1)
 browser.mac = true;

 if (browser.windows_nt &amp;&amp; !browser.windows)
 browser.windows = true;

 //put known browsers into the 'version' property for 'some' jquery compatibility

 //for sake of argument chromium 'is' chrome
 if (browser.chromium &amp;&amp; !browser.chrome)
 browser.chrome = browser.chromium;

 //chrome / safari / webkit
 if (browser.chrome) {
 browser.version = browser.chrome;
 }
 else if (browser.safari) {
 browser.version = browser.safari;
 }
 else {
 if (browser.applewebkit)
 browser.webkit = browser.applewebkit;

 if (browser.webkit)
 browser.version = browser.webkit;
 }

 //firefox / gecko
 if (browser.firefox) {
 if (browser.rv)
 browser.version = browser.rv;

 else browser.version = browser.firefox;
 }
 else if (browser.gecko) {
 if (browser.rv)
 browser.version = browser.rv;

 else browser.version = browser.gecko;
 }

 //opera
 if (browser.opera &amp;&amp; !browser.version)
 browser.version = browser.opera;

 //msie
 if (browser.trident &amp;&amp; browser.rv) //ie11
 browser.msie = browser.rv;

 if (browser.msie)
 browser.version = browser.msie;

 $.browser = browser;//Rename to reduce confliction?

 //WAS USED FOR TESTING &amp; DISCOVERY (very useful)
 //TODO: remove line below
 alert(JSON.stringify($.browser));

}) (jQuery);
</code></pre>

On Internet Explorer 10, JSON.stringify will ouput something like this:

<pre><code>{"mozilla":"5.0","msie":"10.0","windows_nt":"6.2","trident":"6.0","net4.0e":true,"net4.0c":true,"net_clr":["3.5.30729","2.0.50727","3.0.30729"],"windows":true,"version":"10.0"}
</code></pre>

blocks|key|3045689|text|简短而又强大。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3045690|//+chrome,+safari,+webkit,+mozilla,+msie,+opera
var+chrome+=+/chrome/i.test(navigator.userAgent);+|code-block|syntax|javascript|3045691|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Short and yet Powerful.

<pre><code>// chrome, safari, webkit, mozilla, msie, opera
var chrome = /chrome/i.test(navigator.userAgent); 
</code></pre>

blocks|key|203703|text|可以通过额外检查在特定IE版本中添加的标准全局对象是否存在来检测IE的确切版本。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|203704|10+or+older+document.all
9+or+older++document.all+&&+!window.atob
8+or+older++document.all+&&+!document.addEventListener
7+or+older++document.all+&&+!document.querySelector
6+or+older++document.all+&&+!window.XMLHttpRequest
5.x+document.all+&&+!document.compatMode

if+(document.all+&&+!document.querySelector)+{
++++alert('IE7+or+lower');
}|code-block|syntax|javascript|203705|这些测试避免使用用于欺骗的userAgent|203706|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Exact version of IE can be detected by additional checking of existence of standard global objects added in specific IE versions.

<pre><code>10 or older document.all
9 or older document.all &amp;&amp; !window.atob
8 or older document.all &amp;&amp; !document.addEventListener
7 or older document.all &amp;&amp; !document.querySelector
6 or older document.all &amp;&amp; !window.XMLHttpRequest
5.x document.all &amp;&amp; !document.compatMode

if (document.all &amp;&amp; !document.querySelector) {
 alert('IE7 or lower');
}
</code></pre>

These tests avoid using the userAgent which is used for spoofing

I had several clients complain yesterday that some code stopped working. Apparently it comes down to plug-ins using the now deprecated <code>jQuery.browser</code> which stopped working yesterday when jQuery 1.9 was released.

I (quickly) looked at the 1.9 change docs and it seems like they want me to substitute some pretty heavy libraries just for that one function.

Is there a recommended lightest weight plug-in or code snippet to restore that functionality?

For what these sites need, it's very basic; I only need the most basic detection of IE vs FF vs everyone else.

Suggestions?

Easiest/Lightest Replacement For Browser Detection jQuery 1.9?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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昨天，我有几个客户抱怨说，一些代码停止工作。显然，这归结于使用现已弃用的jQuery.browser的插件，该插件在昨天jQuery 1.9发布时停止工作。我(很快)看了1.9版本的更改文档，他们似乎想让我用一些相当笨重的库来替换one函数。是否有推荐的最轻量级插件或代码片段来恢复该功能？对于这些网站所需要的，这是非常...

问浏览器检测jQuery 1.9的最简单/最轻便的替代方案？
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问浏览器检测jQuery 1.9的最简单/最轻便的替代方案？
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