How to Find Out Last Index of each() in jQuery?

Question

I have something like this...

$( \'ul li\' ).each( function( index ) {

  $( this ).append( \',\' );

} );

I need to know what index will b

Answer 1

var arr = $('.someClass');
arr.each(function(index, item) {
var is_last_item = (index == (arr.length - 1));
});