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我正在寻找可以识别 IE9 的对象检测功能检查。你能帮助我吗?

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3 回答 3

6

查看James Padolsey这段代码

// ----------------------------------------------------------
// A short snippet for detecting versions of IE in JavaScript
// without resorting to user-agent sniffing
// ----------------------------------------------------------
// If you're not in IE (or IE version is less than 5) then:
//     ie === undefined
// If you're in IE (>=5) then you can determine which version:
//     ie === 7; // IE7
// Thus, to detect IE:
//     if (ie) {}
// And to detect the version:
//     ie === 6 // IE6
//     ie > 7 // IE8, IE9 ...
//     ie < 9 // Anything less than IE9
// ----------------------------------------------------------

// UPDATE: Now using Live NodeList idea from @jdalton

var ie = (function(){

    var undef,
        v = 3,
        div = document.createElement('div'),
        all = div.getElementsByTagName('i');

    while (
        div.innerHTML = '<!--[if gt IE ' + (++v) + ']><i></i><![endif]-->',
        all[0]
    );

    return v > 4 ? v : undef;

}());

之后,您可以像这样使用它:

if (ie == 9) {
  // It’s IE9!
  // Insert your code here
}

这里的好处是它不会嗅探 UA 字符串(它本身是不可靠的)——相反,它使用条件注释,这在 IE 中可以可靠地工作。

这可以用来检测IE5—9。

于 2012-02-01T10:51:43.947 回答
0

不是 100% 确定这是您要问的,但是如果您想检测有关访问者浏览器的信息,您可以检查navigator.appVersion

例子:

<div id="example"></div>

<script type="text/javascript">

txt = "<p>Browser CodeName: " + navigator.appCodeName + "</p>";
txt+= "<p>Browser Name: " + navigator.appName + "</p>";
txt+= "<p>Browser Version: " + navigator.appVersion + "</p>";
txt+= "<p>Cookies Enabled: " + navigator.cookieEnabled + "</p>";
txt+= "<p>Platform: " + navigator.platform + "</p>";
txt+= "<p>User-agent header: " + navigator.userAgent + "</p>";

document.getElementById("example").innerHTML=txt;

</script>
于 2012-02-01T10:52:15.557 回答
0

使用各个版本中引入的IE 窗口对象的属性来区分 IE 版本:

  • IE >= 7:("onpropertychange" in document) && (!!window.XMLHttpRequest)

  • IE >= 8:("onpropertychange" in document) && (!!window.XDomainRequest)

  • IE >= 9:("onpropertychange" in document) && (!!window.innerWidth)

  • IE >= 10:("onpropertychange" in document) && (!!window.matchMedia)

  • IE >= 11:(!!window.msMatchMedia) && (!window.doScroll)

于 2013-05-23T02:20:36.050 回答