Ajax - prevent click on a successful ajax request - ajax

Question

I have a video thumbnail on my page, with a little icon "Thumbs Down". When you click on that, another thumbnail shows, replacing the other. User can do that as much as they want.
My code is now working only the first time. HTML:
AJAX:
$('.dislike_black').click(function(e) {
e.preventDefault();
alert("test");
var $aTag = $(this);
$.ajax({
url: $aTag.attr('href'),
type: "POST",
data: {
"sort": $aTag.data('sort'),
"page": $aTag.data('page')
},
success: function(response) {
$aTag.parents("li").replaceWith(response);
}
});
});
When I click the icon the first time, its all fine, triggers the alert, the second time thought, no alert, and the browser is loading the href link.
I tried .preventDefault(); on the success and the complete event, but its not working.
Any hint on how to do this?

Answer 1

Your content is dynamically created so, depending on the version of jQuery you are using, you need the jQuery.live() or jQuery.on() method
jQuery.live() since jQuery 1.3 an event handler for all elements which match the current selector, now and in the future.
jQuery.on() since jQuery 1.7 - Attach an event handler function for one or more events to the selected elements.
Sample
jQuery.live()
$('.dislike_black').live("click", function(e) {
e.preventDefault();
alert("test");
var $aTag = $(this);
$.ajax({
url: $aTag.attr('href'),
type: "POST",
data: {
"sort": $aTag.data('sort'),
"page": $aTag.data('page')
},
success: function(response) {
$aTag.parents("li").replaceWith(response);
}
});
});
jQuery.on()
$('.dislike_black').on("click", function(e) {
e.preventDefault();
alert("test");
var $aTag = $(this);
$.ajax({
url: $aTag.attr('href'),
type: "POST",
data: {
"sort": $aTag.data('sort'),
"page": $aTag.data('page')
},
success: function(response) {
$aTag.parents("li").replaceWith(response);
}
});
});
More Information
jQuery.live()
jQuery.on()

Answer 2

Because you are replacing the dom which contains the anchor itself by new html in the ajax success handler. In this case you should use on which will attach event handler to parent or document element whatever you pass as the root element but will trigger the event only on the matching selector which you pass as the second argument. Try this.
$(document).on('click', '.dislike_black', function(e) {
e.preventDefault();
alert("test");
var $aTag = $(this);
$.ajax({
url: $aTag.attr('href'),
type: "POST",
data: {
"sort": $aTag.data('sort'),
"page": $aTag.data('page')
},
success: function(response) {
$aTag.parents("li").replaceWith(response);
}
});
});
.on() reference: http://api.jquery.com/on/ (Ver. 1.7+)
If you are using older version of jQuery you can still achieve this using delegate method whose syntax is same as on but just the first 2 arguments are interchanged.
$(document).delegate('.dislike_black', 'click', function(e) {
//Your code here
});
.delegate() reference: http://api.jquery.com/delegate/

Answer 3

try
$(document).delegate('.dislike_black',"click",function(e) {

Answer 4

Try using event delegation.
// older jquery, use this line:
// $( ".dislike_black" ).live( "click", function ( e ) {
$( document ).on( "click", ".dislike_black", function ( e ) {
e.preventDefault();
alert( "test" );
var $aTag = $( this );
$.ajax( {
url : $aTag.attr( 'href' ),
type : "POST",
data : {
"sort" : $aTag.data( 'sort' ),
"page" : $aTag.data( 'page' )
},
success: function ( response ) {
$aTag.parents( "li" ).replaceWith( response );
}
});
});