return line means

Question

$('div.grid').filter(function () { var lis = $(this).find('#menu'); return lis.length === lis.filter(':empty').length; }).hide(); can someone explain to me what does the return line means?..TQ

Manas Mohapatra · Answer

$('div.grid').filter(function () { var lis = $(this).find('#menu'); return lis.length === lis.filter(':empty').length; }).hide(); It means: it displays/hides div element based on the comparison result(true or false). Let explain: Suppose lis.length value 1 and lis.filter(':empty').length is 2 then div won't hide because 1 not equal to 2. If lis.length value 1 and lis.filter(':empty').length is 1 then it hides the div which grid css class.