Comments on: Detecting Flash and Java with JavaScript

By: John

John — Sat, 25 Jun 2011 18:33:00 +0000

That’s pretty dumb, your add comment program just stripped out all the line feeds of the above code!

By: John

John — Sat, 25 Jun 2011 18:30:00 +0000

I don’t think you cover IE completely in the aboce code, this might help:-if (navigator.userAgent.indexOf(‘MSIE’) > -1) { // Use eval to stop any try/catch problems with old browsers var msg = ‘Java not installed’ eval(“try {var jws=new ActiveXObject(‘JavaWebStart.isInstalled’)} catch (e) {alert(msg)}”)}

By: free flash animation

free flash animation — Sun, 05 Dec 2010 13:20:00 +0000

Thank you for sharing this information about flash and javascript. I found it very needful for me. Wonderful job.

By: Detecting JS, Flash, and Java in your browser | CloudSync Developer’s Blog

Mon, 10 Nov 2008 14:13:38 +0000

[...] Detecting Flash and Java with JavaScript [...]

By: Stuart Langridge

Stuart Langridge — Tue, 20 Mar 2007 13:04:00 +0000

Surely, though, you’re not catering there for the “navigator.javaEnabled() fails in IE6 sometimes” problem? I’m also looking for a way to reliably detect whether there’s Java installed, and I can’t work it out either You’re checking the Netscape .plugins array, cool, but there’s no IE check other than navigator.javaEnabled which we know is buggy…

By: ernie

ernie — Fri, 26 Jan 2007 08:52:09 +0000

Looks like the activeX check only gets done if there is no Java. I think you stuck:

// The other way to check if Java is enabled
if (navigator.javaEnabled()) {
java_installed = 1;
}

in the middle of an if-the-else instead of the end.

Also you can harness the power of content addressable arrays by just using:
var x = navigator.plugins["Shockwave Flash"];
if (x && x.description) {….}

Ernie