检测浏览器及版本

    function getBrowser() {
        var UserAgent = navigator.userAgent.toLowerCase();
        var browserInfo = {};
        var browserArray = {
            IE: window.ActiveXObject || "ActiveXObject" in window, // IE
            Chrome: UserAgent.indexOf('chrome') > -1 && UserAgent.indexOf('safari') > -1, // Chrome浏览器
            Firefox: UserAgent.indexOf('firefox') > -1, // 火狐浏览器
            Opera: UserAgent.indexOf('opera') > -1, // Opera浏览器
            Safari: UserAgent.indexOf('safari') > -1 && UserAgent.indexOf('chrome') == -1, // safari浏览器
            Edge: UserAgent.indexOf('edge') > -1, // Edge浏览器
            QQBrowser: /qqbrowser/.test(UserAgent), // qq浏览器
            WeixinBrowser: /MicroMessenger/i.test(UserAgent) // 微信浏览器
        };
        // console.log(browserArray)
        for (var i in browserArray) {
            if (browserArray[i]) {
                var versions = '';
                if (i == 'IE') {
                    versions = UserAgent.match(/(msie\s|trident.*rv:)([\w.]+)/)[2];
                } else if (i == 'Chrome') {
                    for (var mt in navigator.mimeTypes) {
                        //检测是否是360浏览器(测试只有pc端的360才起作用)
                        if (navigator.mimeTypes[mt]['type'] == 'application/360softmgrplugin') {
                            i = '360';
                        }
                    }
                    versions = UserAgent.match(/chrome\/([\d.]+)/)[1];
                } else if (i == 'Firefox') {
                    versions = UserAgent.match(/firefox\/([\d.]+)/)[1];
                } else if (i == 'Opera') {
                    versions = UserAgent.match(/opera\/([\d.]+)/)[1];
                } else if (i == 'Safari') {
                    versions = UserAgent.match(/version\/([\d.]+)/)[1];
                } else if (i == 'Edge') {
                    versions = UserAgent.match(/edge\/([\d.]+)/)[1];
                } else if (i == 'QQBrowser') {
                    versions = UserAgent.match(/qqbrowser\/([\d.]+)/)[1];
                }
                browserInfo.type = i;
                browserInfo.versions = parseInt(versions);
            }
        }
        return browserInfo;
    }