JS通过分析userAgent属性来判断浏览器的类型及版本(2)

<script type="text/javascript">
var Sys = {};
var ua = navigator.userAgent.toLowerCase();
var s;
(s = ua.match(/msie ([\d.]+)/)) ? Sys.ie = s[1] :
(s = ua.match(/firefox\/([\d.]+)/)) ? Sys.firefox = s[1] :
(s = ua.match(/chrome\/([\d.]+)/)) ? Sys.chrome = s[1] :
(s = ua.match(/opera.([\d.]+)/)) ? Sys.opera = s[1] :
(s = ua.match(/version\/([\d.]+).*safari/)) ? Sys.safari = s[1] : 0;

//以下进行测试
if (Sys.ie) document.write('IE: ' + Sys.ie);
if (Sys.firefox) document.write('Firefox: ' + Sys.firefox);
if (Sys.chrome) document.write('Chrome: ' + Sys.chrome);
if (Sys.opera) document.write('Opera: ' + Sys.opera);
if (Sys.safari) document.write('Safari: ' + Sys.safari);
</script>
或:
KindEditor开源编辑器源码中的检测浏览器的方法:
KE = {};
KE.browser = (function () {
var ua = navigator.userAgent.toLowerCase();
return {
VERSION:ua.match(/(msie|firefox|webkit|opera)[\/:\s](\d+)/) ? RegExp.$2 : "0",
IE:(ua.indexOf("msie") > -1 && ua.indexOf("opera") == -1),
GECKO:(ua.indexOf("gecko") > -1 && ua.indexOf("khtml") == -1),
WEBKIT:(ua.indexOf("applewebkit") > -1),
OPERA:(ua.indexOf("opera") > -1)
};
})();

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