Question

I am trying to find a jQuery solution to show the first 3 items on each menu in a left-hand navigation filter with a ‘Show more’ and ‘Show less’ link enabling users to expand the list.

I have searched for a solution but most expand/collapse scripts completely hide the layer whilst others show an Expand (Show more) link but do not toggle to show a Collapse (Show less) link.

My menus are coded as follows.

<div id="menu1">
  <ul class="term-list">
    <li class="term-item ">Item 1</li>
    <li class="term-item ">Item 2</li>
    <li class="term-item ">Item 3</li>
    <li class="term-item ">Item 4</li>
  </ul>
</div>
<div id="menu2">
  <ul class="term-list">
    <li class="term-item ">Item 1</li>
    <li class="term-item ">Item 2</li>
    <li class="term-item ">Item 3</li>
    <li class="term-item ">Item 4</li>
  </ul>
</div>

Answer 1

jsBin demo

Here is just a basic example:

$('ul.term-list').each(function(){
  
  var LiN = $(this).find('li').length;
  
  if( LiN > 3){    
    $('li', this).eq(2).nextAll().hide().addClass('toggleable');
    $(this).append('<li class="more">More...</li>');    
  }
  
});


$('ul.term-list').on('click','.more', function(){
  
  if( $(this).hasClass('less') ){    
    $(this).text('More...').removeClass('less');    
  }else{
    $(this).text('Less...').addClass('less'); 
  }
  
  $(this).siblings('li.toggleable').slideToggle();
    
}); 

Or a more compact version.