Comments on: Javascript: Isolating browser specific code

By: Sudhindra Rao

Sudhindra Rao — Wed, 03 Mar 2010 23:33:34 +0000

Hi Mark,
Look at this
http://www.prototypejs.org/api/class/addMethods

Look at the inheritance of snake that makes a supercall.

Jquery does allow class/object creation now(very much like prototype). This should work there too.

-Sudhindra

By: Patrick

Patrick — Tue, 02 Mar 2010 11:32:17 +0000

Mark… targeting IE specifically is exactly how I’ve worked around that one in the past.

By: Chris Airey

Chris Airey — Sun, 28 Feb 2010 22:11:02 +0000

IE6 is a pain in the ass. Although you can loads scripts using JQuery’s getScript(). I.e $.getScript(“test.js”);

By: Mark Needham

Mark Needham — Sun, 28 Feb 2010 01:45:04 +0000

In this case we were writing some code to get around the IE6 bug with placing a div over a select box as described here – http://weblogs.asp.net/bleroy/archive/2005/08/09/how-to-put-a-div-over-a-select-in-ie.aspx – so we needed to insert an empty iframe in front of the div in order for the div to be displayed above the select box for IE6.

Would that be an example of something that is IE specific or is there a way to detect that otherwise?

By: Patrick

Patrick — Sun, 28 Feb 2010 01:39:20 +0000

Usual approach is to prefer object detection over version detection. What people traditionally called object detection in JavaScript is more-or-less done using duck typing.

If you really do need to target IE specifically, you might find that having detection in your HTML for things in your JavaScript is a bit unwieldly so it’s worth noting that IE also supports conditional compilation inside JavaScript.