jQuery.browser：Javascript 未捕获的类型错误

jQuery.browser: Javascript Uncaught TypeError

提问by TonalDev

I'm experiencing an error which wont let my page load.

我遇到了无法加载页面的错误。

Uncaught TypeError: Cannot read property 'msie' of undefined

未捕获的类型错误：无法读取未定义的属性“msie”

The error in the console refer to this code:

控制台中的错误参考此代码：

if (jQuery.browser.msie)
    extra_px += 3;
                                                   // Fix Link Clicking on IE 7 and below versions
if (jQuery.browser.msie && Number($.browser.version) < 8) {
    span_text.css('cursor', 'pointer');
    span_text.click(function() {
        window.location = menu_item.parent().attr("href");
    });
}

The weird thing is that it suddenly happened, I didn't change a thing. For reference, I'm using Wordpress.

奇怪的是它突然发生了，我没有改变任何事情。作为参考，我正在使用 Wordpress。

回答by VisioN

jQuery.browserwas deprecatedin version 1.3, and finally removedin 1.9.

jQuery.browser在 1.3 版本中被弃用，最终在 1.9 中被移除。

_source

_来源

As you can see in current version of jQuery, there is no $.browserproperty anymore.

正如您在当前版本的 jQuery 中看到的那样，$.browser不再有任何属性。

Most probably it was moved to plugin as was stated in docs.

很可能它已移至插件，如docs 中所述。

So if you use the very last version of jQuery, the undefinederror is understandable.

所以如果你使用最新版本的 jQuery，这个undefined错误是可以理解的。

回答by Manish Shrivastava

Yes, jQuery.browser was deprecated in older version and removed in 1.9.So Now In old version if code written like this

是的，jQuery.browser 在旧版本中被弃用，并在 1.9 中删除。所以现在在旧版本中，如果代码是这样写的

isIE6 = jQuery.browser.msie && jQuery.browser.version < 7 && !window.XMLHttpRequest,

will be replaced it by

将被替换为

isIE6 = navigator.userAgent.match(/msie [6]/i) && !window.XMLHttpRequest,

Cheers!!!

干杯！！！

回答by SpYk3HH

As VisioN's answermentions, this was removed in jQuery 1.9 and isn't coming back anytime soon, it seems.

正如VisioN的回答所提到的，这在 jQuery 1.9 中被删除了，而且似乎不会很快回来。

If you would like working Plugin to reAdd $.browserto your jQuery library, simply copy & paste the code below to a file and link the script in anywhere after jQuery:

如果您希望工作插件重新添加$.browser到您的 jQuery 库，只需将下面的代码复制并粘贴到文件中，然后将脚本链接到 jQuery 之后的任何位置：

;;(function($){if(!$.browser&&1.9<=parseFloat($.fn.jquery)){var a={browser:void 0,version:void 0,mobile:!1};navigator&&navigator.userAgent&&(a.ua=navigator.userAgent,a.webkit=/WebKit/i.test(a.ua),a.browserArray="MSIE Chrome Opera Kindle Silk BlackBerry PlayBook Android Safari Mozilla Nokia".split(" "),/Sony[^ ]*/i.test(a.ua)?a.mobile="Sony":/RIM Tablet/i.test(a.ua)?a.mobile="RIM Tablet":/BlackBerry/i.test(a.ua)?a.mobile="BlackBerry":/iPhone/i.test(a.ua)?a.mobile="iPhone":/iPad/i.test(a.ua)?a.mobile="iPad":/iPod/i.test(a.ua)?a.mobile="iPod":/Opera Mini/i.test(a.ua)?a.mobile="Opera Mini":/IEMobile/i.test(a.ua)?a.mobile="IEMobile":/BB[0-9]{1,}; Touch/i.test(a.ua)?a.mobile="BlackBerry":/Nokia/i.test(a.ua)?a.mobile="Nokia":/Android/i.test(a.ua)&&(a.mobile="Android"),/MSIE|Trident/i.test(a.ua)?(a.browser="MSIE",a.version=/MSIE/i.test(navigator.userAgent)&&0<parseFloat(a.ua.split("MSIE")[1].replace(/[^0-9\.]/g,""))?parseFloat(a.ua.split("MSIE")[1].replace(/[^0-9\.]/g,"")):"Edge",/Trident/i.test(a.ua)&&/rv:([0-9]{1,}[\.0-9]{0,})/.test(a.ua)&&(a.version=parseFloat(a.ua.match(/rv:([0-9]{1,}[\.0-9]{0,})/)[1].replace(/[^0-9\.]/g,"")))):/Chrome/.test(a.ua)?(a.browser="Chrome",a.version=parseFloat(a.ua.split("Chrome/")[1].split("Safari")[0].replace(/[^0-9\.]/g,""))):/Opera/.test(a.ua)?(a.browser="Opera",a.version=parseFloat(a.ua.split("Version/")[1].replace(/[^0-9\.]/g,""))):/Kindle|Silk|KFTT|KFOT|KFJWA|KFJWI|KFSOWI|KFTHWA|KFTHWI|KFAPWA|KFAPWI/i.test(a.ua)?(a.mobile="Kindle",/Silk/i.test(a.ua)?(a.browser="Silk",a.version=parseFloat(a.ua.split("Silk/")[1].split("Safari")[0].replace(/[^0-9\.]/g,""))):/Kindle/i.test(a.ua)&&/Version/i.test(a.ua)&&(a.browser="Kindle",a.version=parseFloat(a.ua.split("Version/")[1].split("Safari")[0].replace(/[^0-9\.]/g,"")))):/BlackBerry/.test(a.ua)?(a.browser="BlackBerry",a.version=parseFloat(a.ua.split("/")[1].replace(/[^0-9\.]/g,""))):/PlayBook/.test(a.ua)?(a.browser="PlayBook",a.version=parseFloat(a.ua.split("Version/")[1].split("Safari")[0].replace(/[^0-9\.]/g,""))):/BB[0-9]{1,}; Touch/.test(a.ua)?(a.browser="Blackberry",a.version=parseFloat(a.ua.split("Version/")[1].split("Safari")[0].replace(/[^0-9\.]/g,""))):/Android/.test(a.ua)?(a.browser="Android",a.version=parseFloat(a.ua.split("Version/")[1].split("Safari")[0].replace(/[^0-9\.]/g,""))):/Safari/.test(a.ua)?(a.browser="Safari",a.version=parseFloat(a.ua.split("Version/")[1].split("Safari")[0].replace(/[^0-9\.]/g,""))):/Firefox/.test(a.ua)?(a.browser="Mozilla",a.version=parseFloat(a.ua.split("Firefox/")[1].replace(/[^0-9\.]/g,""))):/Nokia/.test(a.ua)&&(a.browser="Nokia",a.version=parseFloat(a.ua.split("Browser")[1].replace(/[^0-9\.]/g,""))));if(a.browser)for(var b in a.browserArray)a[a.browserArray[b].toLowerCase()]=a.browser==a.browserArray[b];$.extend(!0,$.browser={},a)}})(jQuery);

jsFiddle

js小提琴

---

---

Use traditionally like: if ($.browser.msie) { doWork }

传统上使用，如： if ($.browser.msie) { doWork }

---

---

/** jQuery.browser
 * @author J.D. McKinstry (2014)
 * @description Made to replicate older jQuery.browser command in jQuery versions 1.9+
 * @see http://jsfiddle.net/SpYk3/wsqfbe4s/
 *
 * @extends jQuery
 * @namespace jQuery.browser
 * @example jQuery.browser.browser == 'browserNameInLowerCase'
 * @example jQuery.browser.version
 * @example jQuery.browser.mobile @returns BOOLEAN
 * @example jQuery.browser['browserNameInLowerCase']
 * @example jQuery.browser.chrome @returns BOOLEAN
 * @example jQuery.browser.safari @returns BOOLEAN
 * @example jQuery.browser.opera @returns BOOLEAN
 * @example jQuery.browser.msie @returns BOOLEAN
 * @example jQuery.browser.mozilla @returns BOOLEAN
 * @example jQuery.browser.webkit @returns BOOLEAN
 * @example jQuery.browser.ua @returns navigator.userAgent String
 */
;;(function($){if(!$.browser&&1.9<=parseFloat($.fn.jquery)){var a={browser:void 0,version:void 0,mobile:!1};navigator&&navigator.userAgent&&(a.ua=navigator.userAgent,a.webkit=/WebKit/i.test(a.ua),a.browserArray="MSIE Chrome Opera Kindle Silk BlackBerry PlayBook Android Safari Mozilla Nokia".split(" "),/Sony[^ ]*/i.test(a.ua)?a.mobile="Sony":/RIM Tablet/i.test(a.ua)?a.mobile="RIM Tablet":/BlackBerry/i.test(a.ua)?a.mobile="BlackBerry":/iPhone/i.test(a.ua)?a.mobile="iPhone":/iPad/i.test(a.ua)?a.mobile="iPad":/iPod/i.test(a.ua)?a.mobile="iPod":/Opera Mini/i.test(a.ua)?a.mobile="Opera Mini":/IEMobile/i.test(a.ua)?a.mobile="IEMobile":/BB[0-9]{1,}; Touch/i.test(a.ua)?a.mobile="BlackBerry":/Nokia/i.test(a.ua)?a.mobile="Nokia":/Android/i.test(a.ua)&&(a.mobile="Android"),/MSIE|Trident/i.test(a.ua)?(a.browser="MSIE",a.version=/MSIE/i.test(navigator.userAgent)&&0<parseFloat(a.ua.split("MSIE")[1].replace(/[^0-9\.]/g,""))?parseFloat(a.ua.split("MSIE")[1].replace(/[^0-9\.]/g,"")):"Edge",/Trident/i.test(a.ua)&&/rv:([0-9]{1,}[\.0-9]{0,})/.test(a.ua)&&(a.version=parseFloat(a.ua.match(/rv:([0-9]{1,}[\.0-9]{0,})/)[1].replace(/[^0-9\.]/g,"")))):/Chrome/.test(a.ua)?(a.browser="Chrome",a.version=parseFloat(a.ua.split("Chrome/")[1].split("Safari")[0].replace(/[^0-9\.]/g,""))):/Opera/.test(a.ua)?(a.browser="Opera",a.version=parseFloat(a.ua.split("Version/")[1].replace(/[^0-9\.]/g,""))):/Kindle|Silk|KFTT|KFOT|KFJWA|KFJWI|KFSOWI|KFTHWA|KFTHWI|KFAPWA|KFAPWI/i.test(a.ua)?(a.mobile="Kindle",/Silk/i.test(a.ua)?(a.browser="Silk",a.version=parseFloat(a.ua.split("Silk/")[1].split("Safari")[0].replace(/[^0-9\.]/g,""))):/Kindle/i.test(a.ua)&&/Version/i.test(a.ua)&&(a.browser="Kindle",a.version=parseFloat(a.ua.split("Version/")[1].split("Safari")[0].replace(/[^0-9\.]/g,"")))):/BlackBerry/.test(a.ua)?(a.browser="BlackBerry",a.version=parseFloat(a.ua.split("/")[1].replace(/[^0-9\.]/g,""))):/PlayBook/.test(a.ua)?(a.browser="PlayBook",a.version=parseFloat(a.ua.split("Version/")[1].split("Safari")[0].replace(/[^0-9\.]/g,""))):/BB[0-9]{1,}; Touch/.test(a.ua)?(a.browser="Blackberry",a.version=parseFloat(a.ua.split("Version/")[1].split("Safari")[0].replace(/[^0-9\.]/g,""))):/Android/.test(a.ua)?(a.browser="Android",a.version=parseFloat(a.ua.split("Version/")[1].split("Safari")[0].replace(/[^0-9\.]/g,""))):/Safari/.test(a.ua)?(a.browser="Safari",a.version=parseFloat(a.ua.split("Version/")[1].split("Safari")[0].replace(/[^0-9\.]/g,""))):/Firefox/.test(a.ua)?(a.browser="Mozilla",a.version=parseFloat(a.ua.split("Firefox/")[1].replace(/[^0-9\.]/g,""))):/Nokia/.test(a.ua)&&(a.browser="Nokia",a.version=parseFloat(a.ua.split("Browser")[1].replace(/[^0-9\.]/g,""))));if(a.browser)for(var b in a.browserArray)a[a.browserArray[b].toLowerCase()]=a.browser==a.browserArray[b];$.extend(!0,$.browser={},a)}})(jQuery);
/* - - - - - - - - - - - - - - - - - - - */

var b = $.browser;
console.log($.browser);    //    see console, working example of jQuery Plugin
console.log($.browser.chrome);

for (var x in b) {
    if (x != 'init')
        $('<tr />').append(
            $('<th />', { text: x }),
            $('<td />', { text: b[x] })
        ).appendTo($('table'));
}

table { border-collapse: collapse; }
th, td { border: 1px solid; padding: .25em .5em; vertical-align: top; }
th { text-align: right; }

textarea { height: 500px; width: 100%; }

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<table></table>

回答by Hugo

You can use the jQuery.Migrate library for deprecated function support like $.browser.

您可以使用 jQuery.Migrate 库来支持已弃用的函数，例如 $.browser。

See https://github.com/jquery/jquery-migrate/#readme

见https://github.com/jquery/jquery-migrate/#readme