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i have a search field in which the user enters a letter and the ajax script in the background performs a search. The results are displayed live in a ul-li list. The user can click on the li which class is 'search_list_item'. After the click the username/id is copied into another div (the msg-receiver div).

I have a strange behaviour because in Safari everything works fine. In firefox the click-event seems to be fired two times, because i see the username two times in the #msg_receiver-div.

The code looks like this:

$(document).ready(function(){
    $('#searchresult').on('click', 'li.search_list_item', function(){

    var msg_receiver_content = $('#msg_receiver').html();

    $('#msg_receiver').html(msg_receiver_content + ' <li class="single_receiver" id="single_receiver_'+$(this).attr('id')+'">'+$(this).find('span').html()+'</li>');

    $('#single_receiver_'+$(this).attr('id')).hide().fadeIn(500);

    });
});

Does anybody know why the code is called two times in FF and one time in Safari - i only click one time on the li in the search result.

Edit: In the initial state the #msg_receiver-div is empty, but it seems like the statement $('#msg_receiver').html( is performed before the variable msg_receiver_content has some content and then the variable has the content which should be added afterwards...

i have a search field in which the user enters a letter and the ajax script in the background performs a search. The results are displayed live in a ul-li list. The user can click on the li which class is 'search_list_item'. After the click the username/id is copied into another div (the msg-receiver div).

I have a strange behaviour because in Safari everything works fine. In firefox the click-event seems to be fired two times, because i see the username two times in the #msg_receiver-div.

The code looks like this:

$(document).ready(function(){
    $('#searchresult').on('click', 'li.search_list_item', function(){

    var msg_receiver_content = $('#msg_receiver').html();

    $('#msg_receiver').html(msg_receiver_content + ' <li class="single_receiver" id="single_receiver_'+$(this).attr('id')+'">'+$(this).find('span').html()+'</li>');

    $('#single_receiver_'+$(this).attr('id')).hide().fadeIn(500);

    });
});

Does anybody know why the code is called two times in FF and one time in Safari - i only click one time on the li in the search result.

Edit: In the initial state the #msg_receiver-div is empty, but it seems like the statement $('#msg_receiver').html( is performed before the variable msg_receiver_content has some content and then the variable has the content which should be added afterwards...

  • javascript
  • jquery
Share Improve this question edited Jul 6, 2012 at 17:05 Naftali 146k41 gold badges247 silver badges304 bronze badges asked Jul 6, 2012 at 16:57 TorbenTorben 5,49413 gold badges52 silver badges84 bronze badges 4
  • 1 seems weird. can you provide jsfiddle? – worenga Commented Jul 6, 2012 at 17:02
  • Tried to rebuild this, but the event gets fired only once. +1 for fiddle. And you could also use .append() instead of fetching the whole content and concat it with another string. – insertusernamehere Commented Jul 6, 2012 at 17:04
  • I try to deliver a fiddle tomorrow. Time is short. I tried it with append and even then i get the content two times. Even more weird is the fact, that it occurs when opening the page the first time. After i hit reload and the whole page refreshed everything works fine... – Torben Commented Jul 6, 2012 at 17:11
  • Hello, i found out that the $(document).ready(function(){ is fired twice when adding a console.log('init'); to it. But this happens only, if i open the window the first time! After i reload the page with CMD+R the event is fired once. Why is this happening? I included the .js script only once in the <head> section of the page. – Torben Commented Jul 8, 2012 at 9:34
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3 Answers 3

Reset to default 6

I have been struggling with the same issue. All events seem to work fine, the click event however seems to be firing multiple times. Adding the .off() before .on() seems to solve this issue.

This is causing multiple click events:

$("#select").on("click", function(event){
    //do something
});

This is firing exactly one click event. I have not been able to trigger multiple events so far with this:

$("#select").off().on("click", function(event){
    //do something
});

You might need event.stopPropagation() to prevent event bubbling (which is probably happening).

$(document).ready(function(){
    $('#searchresult').on('click', 'li.search_list_item', function(event){

        event.stopPropagation(); // stop event bubbling

        var msg_receiver_content = $('#msg_receiver').html();

        $('#msg_receiver').html(msg_receiver_content + ' <li class="single_receiver" id="single_receiver_'+$(this).attr('id')+'">'+$(this).find('span').html()+'</li>');

        $('#single_receiver_'+$(this).attr('id')).hide().fadeIn(500);

    });
});

You can set a locking variable, since this action takes time, it should lock out the second click event. 

$(document).ready(function(){

    var blockClick = false;

    $('#searchresult').on('click', 'li.search_list_item', function(){

    if(blockClick){
    }else{

        blockClick = true;

        var msg_receiver_content = $('#msg_receiver').html();

        $('#msg_receiver').html(msg_receiver_content + ' <li class="single_receiver" id="single_receiver_'+$(this).attr('id')+'">'+$(this).find('span').html()+'</li>');

        $('#single_receiver_'+$(this).attr('id')).hide().fadeIn(500);

        blockClick=false;
    }
    });
});

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