Jquery click is changing the all other values!

Question

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I'm using a little code for Like Unlike button! Problem is when i click on first Like link then all span.count value change.

JavaScript

<script>
$(document).ready(function(){
$('a.like').click(function () {
    if ($(this).attr('class') == 'like') {
        $.post("like.cfm", {postid:$(this).attr("postid"),uid:$(this).attr("uid")} );
 
        $(this).removeClass('like').addClass('unlike').html('Unlike');
		var test=$('.count').html();
        test++;
        $(".count").html(test);
    } else {
        $.post("unlike.cfm", { pageID: $(this).attr("postid") });
 
        $(this).removeClass('unlike').addClass('like').html('Like');
		
		var test=$('span.count').html();
        test--;
        $(".count").html(test);
    }
});
});
</script>

Here's the HTML

XML

<a href="##" class="like" postid="1234" uid="2">Like </a> <span class="count">100</span>
<br>
<br>
<a href="##" class="like" postid="1234" uid="2">Like </a> <span class="count">100</span>

JSFiddle http://jsfiddle.net/tgaQA/[^]

Posted 6-Jun-14 4:18am

liquidsmoke07

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Comments

_Maxxx_ 6-Jun-14 10:49am

Well you have

<pre lang="cs">var test=$('.count').html();
test++;</pre>

which says 'get the element with a class of .count and increment it.

And you have two elements with that class

sorry I don't know how to get it working off the top of my head - as you plainly do't want to give each element its own Id and function///

liquidsmoke07 6-Jun-14 11:06am

Hey Maxx i got the solution :) You can see what Peter gave us :)

Brian A Stephens 6-Jun-14 13:37pm

I would also caution against your use of $(this).attr('class'), since it will return ALL classes of the element. You may very well add another class for styling purposes that will remain in both the "like" and "unlike" states. It's more precise to use $(this).hasClass('like').

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Peter Leow · Accepted Answer · 2014-06-06T04:42:00

Since the span is next to the like, just has to use next(), see modification:

$(document).ready(function () {
    $('a.like').click(function () {
        var next = $(this).next()
        var test = $(this).next().html();
        if ($(this).attr('class') == 'like') {
            $.post("like.cfm", {
                postid: $(this).attr("postid"),
                uid: $(this).attr("uid")
            });

            $(this).removeClass('like').addClass('unlike').html('Unlike');

            test++;

        } else {
            $.post("unlike.cfm", {
                pageID: $(this).attr("postid")
            });

            $(this).removeClass('unlike').addClass('like').html('Like');

            test--;
        }
        next.html(test);
    });
});