jquery v1.3.2 find element by attribute

Question

I need to find and iterate through all child elements that have specific attribute. The following code worked fine in jquery 1.2.6, but throws exception in 1.3.2

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Answer 1

Doesn't work for me in IE when I want to find inputs with required="".

Works when I change to required="required". Maybe other combinations also work https://stackoverflow.com/a/3012975/588759