点击事件无法正常运行

Question

I have a problem with click event:

I have in HTML:

<div class="content-block cards-clipboard">
                        <a class="download-all">Download All</a>

                        </div>

And a JS:

var html = '<div class="card demo-card-header-pic data-url='+img+'">'+
  '<div style="background-image:url('+thumb+'); background-size: 100%; height: 272px; background-repeat: no-repeat;" valign="bottom" class="card-header color-white no-border">'+html_icone_camera+'</div>'+
  '<div class="card-content">'+
    '<div class="card-content-inner">'+
     '<p class="color-gray">Postado em '+datapub+'</p>'+
      '<p>'+legenda+'</p>'+
    '</div>'+
  '</div>'+
  '<div class="card-footer-'+id_link+'">'+
    '<button data-url='+img+' data-step="download" data-cod='+id_link+' type="button" class="download-imagem btn btn-primary btn-lg btn-block '+id_link+'"><i class="fa fa-download" aria-hidden="true"></i>&nbspDownload</button>'+
  '</div>'+
'</div>';

$$(html).appendTo('.cards-clipboard');  

And a trigger:

$$('.download-all').on('click', function() {
                $$("button[data-step='download']").click();

            });

That is: I have a button ('.download-all') when clicked, trigger a click in other buttons generated dinamically via append (var html) that have the data-step=download attribute.

However, when i click in .download-all button, the first button not receive a click - only the first button - the others, receive....

I appreciate any help

EDIT : If i put $$("button[data-step='download']").click(); in console, the clicks works fine in all buttons....

Answer 1

If you are using jQuery, remove 2 $ signs and only have one:

$(html).appendTo('.cards-clipboard');  

And your event command would be:

$('.download-all').on('click', function() {
            $("button[data-step='download']").trigger('click');

        });

Answer 2

Try to use JQuery trigger()

 $$('.download-all').on('click', function() {
            $$("button[data-step='download']").trigger("click");

 });

If not try to remove the double dollar sign and use single dollar sign.

Please vote and mark the solution if useful.

Thanks!

Answer 3

Only the first button is being triggered because of page loading order. php is executed before html/javascript. Because this happens, the event handler can't find a button with specified id or class. One way to circumvent this is to delegate an event listener to the area which contains the dynamically created buttons. For instance,

$('#myId').delegate('button','click',function() {
       //do something
});