使用 Jquery 獲取 Internet Explorer 瀏覽器版本

 

通過獲得到瀏覽器的 UserAgent 字符串可以得知 Internet Explorer 6-10 的 UserAgent 內容是這樣的：

Internet Explorer 10 "5.0 (compatible; MSIE 10.0; Windows NT 10.0; WOW64; Trident/7.0; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729)"
Internet Explorer 9 "5.0 (compatible; MSIE 9.0; Windows NT 10.0; WOW64; Trident/7.0; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729)"
Internet Explorer 8 "4.0 (compatible; MSIE 8.0; Windows NT 10.0; WOW64; Trident/7.0; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729)"
Internet Explorer 7 "4.0 (compatible; MSIE 7.0; Windows NT 10.0; WOW64; Trident/7.0; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729)"

所以只需要用正則匹配響應的版本號即可判斷當前的瀏覽器以及版本了。

    var userAgent = window.navigator.userAgent.toLowerCase();
    var ie10 = ($.browser.msie && /msie 10\.0/i.test(userAgent));
    var ie9 = ($.browser.msie && /msie 9\.0/i.test(userAgent));
    var ie8 = ($.browser.msie && /msie 8\.0/i.test(userAgent));
    var ie7 = ($.browser.msie && /msie 7\.0/i.test(userAgent));
    var ie6 = ($.browser.msie && /msie 6\.0/i.test(userAgent));