jQuery dot in ID selector? [duplicate]

Question

Use the escaping rules from the jQuery selectors API as follows:

$('#root\\.SomeCoolThing') 

From the docs:

To use any of the meta-characters (such as !"#$%&'()*+,./:;<=>?@[\]^`{|}~) as a literal part of a name, it must be escaped with with two backslashes: \\. For example, an element with id="foo.bar", can use the selector $("#foo\\.bar").

Using attr works:

$('p[id="root.SomeCoolThing"]')

You need to escape special chars:

$('#root\\.SomeCoolThing')

docs:

If you wish to use any of the meta-characters ( such as !"#$%&'()*+,./:;<=>?@[]^`{|}~ ) as a literal part of a name, you must escape the character with two backslashes: \\. For example, if you have an element with id="foo.bar", you can use the selector $("#foo\\.bar").

You can escape period using something like this

$("#root\\.SomeCoolThing")

How do I get jQuery to select elements with a . (period) in their ID? http://groups.google.com/group/jquery-en/browse_thread/thread/ba072168939b245a?pli=1