How to remove all li elements inside an ul except the first and the last elements using jQuery?

To remove from all ul-s on the page the li-s that are neither the first nor the last:

$('ul li:not(:first-child):not(:last-child)').remove();

Or using a specific id:

$('#yourul li:not(:first-child):not(:last-child)').remove();

If you have a jQuery object with your ul in it:

$(yourul).find('li:not(:first-child):not(:last-child)').remove();

Have you tried selecting all the list elements, and then removing the first and last ones from the list?

$('ul li').not('li:first, li:last').remove()

$('ul li').not('li:first, li:last').remove(); 

This will remove all items from list Except/Exclude first and last element,

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To remove all items from any list

$('#yourulid li').remove();  //remove all li items from list named/id #yourulid