JavaScript Read more on Database result read more from database

Hi there my code is quite simple but Id like for the design purposes to keep everything neat , at the moment Im pulling all the description which is like Some could be huge others can be quite small , anyway to make it fair I decided to make a read more button and once I click it just expand on the text like , SO somehow to make it show the first 160 characters after that ... then ReadMore link button that when you click it expands and shows the whole text Heres my script that I use for now :

<p><?PHP echo $thismovie['description']; ?></p> <div style="text-align:right">

So I would like to know how this is done and if possible only using javascript, thanks !

Answer:1

While you could of course use PHP, another way is to use the text-overflow property of css correctly.

This method will put less strain on the server, especially when there are a bunch of descriptions on the page. Using PHP to concatenate every single one is not efficient and is not the correct way to do this.

Removing a class is much simpler. And you can add it back when you want to show less.

<style>
     .ellipsis {
         white-space: nowrap; 
         text-overflow: ellipsis; 
         overflow: hidden; 
         height: 14px;
     }
     .description {
         width: 300px;
         background: #ccc; 
         padding: 3px;
         margin-top: 30px;
         margin-bottom: 0;
     }
</style>

<!-- It is likely you would use a PHP loop for this but for illustration 
     purposes I've listed them out -->

<p class="description ellipsis"><?=$movie[0]['description']?></p>
<a target='_blank' href="#" class="read-more">Read More</a>

<p class="description ellipsis"><?=$movie[1]['description']?></p>
<a target='_blank' href="#" class="read-more">Read More</a>

<p class="description ellipsis"><?=$movie[2]['description']?></p>
<a target='_blank' href="#" class="read-more">Read More</a>

<!-- use as many as you want with no additional strain on server. -->

WITH JQUERY... http://jsfiddle.net/kx2nbv3z/

<!-- Include jQuery -->
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script>
    $(document)
        .on('click','.read-more',function() { 
            $(this).removeClass('read-more').addClass('show-less').html('Show Less').prev('.description').removeClass('ellipsis'); 
        })

        .on('click','.show-less',function() { 
            $(this).removeClass('show-less').addClass('read-more').html('Read More').prev('.description').addClass('ellipsis'); 
        })
    ;
</script>

WITH PURE JAVASCRIPT... http://jsfiddle.net/8wsbw0u8/

<script>


if (document.body.addEventListener) {
    document.body.addEventListener('click',yourHandler,false);
}
else {
    document.body.attachEvent('onclick',yourHandler);//for IE
}

function yourHandler(e) {
    e = e || window.event;
    var target = e.target || e.srcElement;
    prev = target.previousSibling.previousSibling;
    if (target.className.match(/read-more/)) {
        target.className="show-less";
        target.innerHTML = "Show Less";
        prev.setAttribute("class","description");
        console.log(prev);
    }
    else if (target.className.match(/show-less/)) {
        target.className="read-more";
        target.innerHTML = "Read More";
        prev.setAttribute("class","description ellipsis");
    }
}
</script>
Answer:2

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