jQuery: Selecting elements with uncommon / special characters in ID or class name

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HTML generated by some CMS or frameworks include elements with rather uncommon characters in ID or class names. For example, some may have special characters such as ‘.’ or ‘[..]’ in the ID or Class. To work around this, a selector in jQuery should be written this way:

$("$some.id") // won't work for ID: some.id $("$some\\.id") // works for ID: some.id

With brackets in ID:

$("$some[id]") // won't work for ID: some[id] $("$some\\[id\\]") // works for ID: some[id]

You get the idea. Just add double backslashes \\ before any of the special characters.