Dealing with events in elements added later

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#1 by (4 votes)

2

Consider the following HTML:

<div id="div">
    <button class="foo">Botão1</button>
</div>

And the following script:

$(".foo").click ->
    alert "foobar"

$("#div").append '<button class="foo">Botão2</button>'

Run JSFiddle and check out: link

On Button1 the event is triggered. On Button2 no, it was added later.

I would like to know how best to make the event available for the second button, if possible, without having to add the click event again.

javascript coffeescript

asked by anonymous 11.09.2014 / 14:42

1 answer

score 4 · Accepted Answer

When the element does not exist in the DOM , you have to do the delegation of the event in document , or in a more element next that includes the .foo 's:

$(document).on( 'click', '.foo', function(e){ 
    alert('bar');
});