Using JavaScript implementations to determine the current browser

Wrote a method to determine the current browser type and version, only in IE 8/11, Google, 360 browser (not complete) on the test

I hope you will make comments

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;(function ($, window, document,undefined) {if (!window.browser) {  var useragent = Navigator.userAgent.toLowerCase (), Uamatch; Window.browser = {}  /** * To determine if IE/function Isie () {return ("ActiveXObject" in window),/** * To determine whether Google Browser/if ( !uamatch) {Uamatch = Useragent.match (/chrome/([D.] +)/); if (uamatch!=null) {window.browser[' name '] = ' chrome '; window.browser[' version ' = uamatch[1];} /** * To determine if the Firefox browser/if (!uamatch) {uamatch = Useragent.match (/firefox/([D.] +)/); if (uamatch!=null) {window.browser[' name '] = ' Firefox '; window.browser[' version ' = uamatch[1];} /** * To determine whether Opera browser/if (!uamatch) {uamatch = Useragent.match (/opera. [D.] +)/); if (uamatch!=null) {window.browser[' name '] = ' opera '; window.browser[' version ' = uamatch[1];} /** * Determine if the Safari browser/if (!uamatch) {uamatch = Useragent.match (/safari/([D.] +)/); if (uamatch!=null) {window.browser[' name '] = ' safari '; window.browser[' version ' = uamatch[1];} /** * Final Judgment is IE/if (!uamatch) {if (Useragent.match) (/msIE ([D.] +)/) {Uamatch = Useragent.match (/msie ([D.]!=null) +)/); window.browser[' name ' = ' IE '; window.browser[' version '] = uamatch[1]; }else{/** * IE10/if (Isie () &&!! Document.attachevent && (function () {' Use strict '; return!this} ()) {window.browser[' name '] = ' ie '; window.browser[' version ' = ' ten ';}/** * IE11/if (Isie () &&!document.atta chevent) {window.browser[' name '] = ' ie '; window.browser[' version ' = ' 11 ';}} }  /** * Registration Judgment Method */if (!$.isie) {$.extend ({isie:function () {return (Window.browser.name = = ' ie ');}});} if (!$.isch Rome) {$.extend ({ischrome:function () {return (Window.browser.name = = ' chrome ');});} if (!$.isfirefox) {$.extend ({ISFI Refox:function () {return (Window.browser.name = = ' Firefox ');}); } if (!$.isopera) {$.extend ({isopera:function () {return (Window.browser.name = = ' opera ');}};} if (!$.issafari) {$.exten D ({issafari:function () {return (Window.browser.name = = ' Safari ');}); }}) (JQuery, window, document);

How to use

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Console.log (Window.browser); Console.log ($.isie ()); Console.log ($.ischrome ());