JQuery adding events to dynamically created elements

Question

I know this has been asked before but I can't seem to figure out what I'm doing wrong.

I am just trying to create some dynamic elements and then attach an event to them using only JQuery. The buttons should launch an alert.

http://jsfiddle.net/XGb7w/1/

$(function(){   

    $('#add').on("click",function(){addItem()});


    function addItem() {
        var listItem = '<li>' +  '<button class="checkBtn"></button>' + '<button class="crossBtn"></button>' + '</li>';
        $('ul').append(listItem);
    }


    $('.crossBtn').on("click", function() {
        alert() // Doesn't alert why not?
    });



    $('.checkBtn').on("click", function() {
        alert();// Doesn't alert why not?
    })

});

Thank you.

You had 3 ;s missing in your code. You should be careful, this will probably cause problems in the future. — Hogan
– Hogan, Commented Jul 28, 2014 at 19:49

Hogan · Accepted Answer · 2014-07-28 19:44:41Z

1

You can do this if you set the on handler at the document level.

http://jsfiddle.net/fbNY9/

$(function () {

    $('#add').on("click", function () {
        addItem();
    });

    function addItem() {
        var listItem = '<li>' + '<button class="checkBtn" />' + '<button class="crossBtn" />' + '</li>';
        $('ul').append(listItem);
    }

    $(document).on("click",".crossBtn", function () {
        alert(); // Doesn't alert why not?
    });

    $(document).on("click",'.checkBtn', function () {
        alert(); // Doesn't alert why not?
    });

});

answered Jul 28, 2014 at 19:44

Hogan

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1 Comment

Jeff Over a year ago

This is the proper way of handling the issue, it's called event delegation. You attach the event higher in the DOM and listen for the event on the proper target.

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