jquery获取浏览器版本

window.global = { //浏览器版本信息
    browser : (function() {
        var u = window.navigator.userAgent.toLocaleLowerCase(), msie = /(msie) ([\d.]+)/, chrome = /(chrome)\/([\d.]+)/, firefox = /(firefox)\/([\d.]+)/, safari = /(safari)\/([\d.]+)/, opera = /(opera)\/([\d.]+)/, ie11 = /(trident)\/([\d.]+)/, b = u
                .match(msie)
                || u.match(chrome)
                || u.match(firefox)
                || u.match(safari)
                || u.match(opera) || u.match(ie11);
        return {
            name : b[1],
            version : parseInt(b[2])
        };
    })()
}

//调用

alert(global.browser.name)//获取浏览器名称