How to use JQuery to get information about certain tag?

Question

For example, one of them has this:

<div id="hat" re="mouse" > text here </div>

$(.#hat).re = ??????

Answer 1

$('#hat').attr('re');

will get it

$('#hat').attr('re', 'blah'); 

will set it

Answer 2

If you want to update the value of the re attribute simply write this:

$('#hat').attr('re', 'newValue');