javascript - Altering attr string based on current attr value -

i have combo box listener expansion. upon expansion, performs styling on each element particular class within combo box options. 1 of desired changes alteration attribute based on current attribute's value. using this returns undefined.

expand   : function(combo) {   $('.status-0').addclass('greyed-out');   $('.status-0').attr('attrname', $(this).attr('attrname') + ' status 0'); } 

i'd each element .status-0 have attribute string have "is status 0" appended it. attribute extjs tooltip, solution should applicable attribute type.

you need use function overload of $.attr, accepts function receive 2 parameters, index , attribute value. this refer the element. don't need here since can use attribute's value passed.

$('.status-0').attr('attrname', function(_, attrval){      return attrval + ' status 0'; });