JS method to detect visitor browser type

Detect in  browser

<script>
document.write (Navigator.userAgent.toLowerCase ());
</script>

Output to

mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1;. NET CLR trident/4.0; inf opath.2; asktbptv/5.17.0.25589; Alexa toolbar)


Detect display as

mozilla/5.0 (Windows NT 5.1; rv:38.0) gecko/20100101 firefox/38.0
in FF browser

Displays

mozilla/5.0 (Windows NT 5.1) applewebkit/537.36 (khtml, like Gecko) in Google browser chrome/42.0.2311.152 safari/537.36


Why doesn't identify yourself? This is a little weird. The specific reason may be a business relationship, according to the above we know that different browsers will bring their own browser firefox/38.0 chrome/42.0.2311.152 so we can use this to determine the user browser type.

	





	You probably know what's going on with the comments in the code above. Note: The Browser.version > 6 version in if can only be used for IE, the other browser version can not be so judged, there is no way to find a solution. If you want to make the If judgment successful and execute a section of HTML code, then you can fill in the {} after if the HTML converted to JS code. Here are a few typical browser judgment statements:



	




if (Browser.safari) {}/* Determines whether safari/
if (Browser.firefox) {}/* is judged to be Firefox
/if (browser.chrome) {}/* Whether it is for the chrome/
if (Browser.opera) {}/* to determine whether the opera
/if (browser.ie) {}/* is for IE */