jQuery load first 3 elements, click “load more” to display next 5 elements

by Venkatesh Dematti

HTML

<ul id="myList">
    <li>One</li>
    <li>Two</li>
    <li>Three</li>
    <li>Four</li>
    <li>Five</li>
    <li>Six</li>
    <li>Seven</li>
    <li>Eight</li>
    <li>Nine</li>
    <li>Ten</li>
    <li>Eleven</li>
    <li>Twelve</li>
    <li>Thirteen</li>
    <li>Fourteen</li>
    <li>Fifteen</li>
    <li>Sixteen</li>
    <li>Seventeen</li>
</ul>
<div id="loadMore">Load more</div>
<div id="showLess">Show less</div>

CSS

#myList li{ display:none;
}
#loadMore {
    color:green;
    cursor:pointer;
}
#loadMore:hover {
    color:black;
}
#showLess {
    color:red;
    cursor:pointer;
    display:none;
}
#showLess:hover {
    color:black;
}

JavaScript

$(document).ready(function () {
    size_li = $("#myList li").size();
    x=3;
    $('#myList li:lt('+x+')').show();
    $('#loadMore').click(function () {
        x= (x+5 <= size_li) ? x+5 : size_li;
        $('#myList li:lt('+x+')').show();
         $('#showLess').show();
        if(x == size_li){
            $('#loadMore').hide();
        }
    });
    $('#showLess').click(function () {
        x=(x-5<0) ? 3 : x-5;
        $('#myList li').not(':lt('+x+')').hide();
        $('#loadMore').show();
         $('#showLess').show();
        if(x == 3){
            $('#showLess').hide();
        }
    });
});