How to find browser name/details in JavaScript

To get the browser detail you can use the some in built function to get the name, version, user agent and other value of the navigator. Among then the user agent property is more  reliable than appname property to get the following is the small syntax.

 Javascript | 
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var BrowserVersion = navigator.appVersion;
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var Useragebt = navigator.userAgent;
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var browserName  = navigator.appName;
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var fullVersion  = ''+parseFloat(navigator.appVersion);

to implement the same you can use the following snippets which  you can use

 Javascript | 
 copy code |
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var nVer = navigator.appVersion;
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var nAgt = navigator.userAgent;
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var browserName  = navigator.appName;
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var fullVersion  = ''+parseFloat(navigator.appVersion); 
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var majorVersion = parseInt(navigator.appVersion,10);
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var nameOffset,verOffset,ix;
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// In Opera, the true version is after "Opera" or after "Version"
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if ((verOffset=nAgt.indexOf("Opera"))!=-1) {
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 browserName = "Opera";
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 fullVersion = nAgt.substring(verOffset+6);
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 if ((verOffset=nAgt.indexOf("Version"))!=-1) 
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   fullVersion = nAgt.substring(verOffset+8);
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}
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// In MSIE, the true version is after "MSIE" in userAgent
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else if ((verOffset=nAgt.indexOf("MSIE"))!=-1) {
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 browserName = "Microsoft Internet Explorer";
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 fullVersion = nAgt.substring(verOffset+5);
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}
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// In Chrome, the true version is after "Chrome" 
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else if ((verOffset=nAgt.indexOf("Chrome"))!=-1) {
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 browserName = "Chrome";
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 fullVersion = nAgt.substring(verOffset+7);
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}
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// In Safari, the true version is after "Safari" or after "Version" 
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else if ((verOffset=nAgt.indexOf("Safari"))!=-1) {
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 browserName = "Safari";
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 fullVersion = nAgt.substring(verOffset+7);
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 if ((verOffset=nAgt.indexOf("Version"))!=-1) 
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   fullVersion = nAgt.substring(verOffset+8);
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}
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// In Firefox, the true version is after "Firefox" 
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else if ((verOffset=nAgt.indexOf("Firefox"))!=-1) {
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 browserName = "Firefox";
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 fullVersion = nAgt.substring(verOffset+8);
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}
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// In most other browsers, "name/version" is at the end of userAgent 
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else if ( (nameOffset=nAgt.lastIndexOf(' ')+1) < 
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          (verOffset=nAgt.lastIndexOf('/')) ) 
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{
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 browserName = nAgt.substring(nameOffset,verOffset);
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 fullVersion = nAgt.substring(verOffset+1);
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 if (browserName.toLowerCase()==browserName.toUpperCase()) {
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  browserName = navigator.appName;
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 }
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}
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// trim the fullVersion string at semicolon/space if present
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if ((ix=fullVersion.indexOf(";"))!=-1)
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   fullVersion=fullVersion.substring(0,ix);
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if ((ix=fullVersion.indexOf(" "))!=-1)
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   fullVersion=fullVersion.substring(0,ix);
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majorVersion = parseInt(''+fullVersion,10);
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if (isNaN(majorVersion)) {
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 fullVersion  = ''+parseFloat(navigator.appVersion); 
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 majorVersion = parseInt(navigator.appVersion,10);
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}
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document.write(''
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 +'Browser name  = '+browserName+'<br>'
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 +'Full version  = '+fullVersion+'<br>'
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 +'Major version = '+majorVersion+'<br>'
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 +'navigator.appName = '+navigator.appName+'<br>'
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 +'navigator.userAgent = '+navigator.userAgent+'<br>'
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)