Alternative to jquery live that can work

2019-01-25 13:19发布

问题:

I have this simple code. http://jsfiddle.net/borth/BmEZv/ If you click on the link once, it works fine. If you click on it a second time, it doesn't work. Due to the html being loaded into html after the DOM has loaded, I've tried .on, .bind, .delegate, and .live. No of them work except for .live which is being deprecated (I'm using jquery 1.7.2).

Can someone explain why .live is the only function that works and why the others don't work (or if I am doing something wrong with the other functions).


$(document).ready(function(){
  $(".OpenPopup").bind('click', function(e){
      alert('test .OpenPopup');
      // do something
      return false;
  });
  $(".EditIcon").bind('click', function(){
      alert('test .EditIcon');
      // do something
      $("#ABC").html('<div class="EditIcon OpenPopup" pwidth="800" pheight="500" ptitle="EditText">click here again</div>');
  });
});


<div id="ABC"><div class="EditIcon OpenPopup" pwidth="800" pheight="500" ptitle="EditText">click here</div></div>

回答1:

$(document).ready(function(){
        $(document.body).on('click', ".OpenPopup", function(e){
            alert('test .OpenPopup');
            // do something
            return false;
        });
        $(document.body).on('click', ".EditIcon", function(){
            alert('test .EditIcon');
            // do something
            $("#ABC").html('<div class="EditIcon OpenPopup" pwidth="800" pheight="500" ptitle="Edit Text">click here again</div>');
        });
    });


回答2:

.on() can be used with or without delegation, below is an example of on() using delegation.

$("#ABC").on('click', ".OpenPopup", function(e){

http://jsfiddle.net/BmEZv/1/



回答3:

Following @Dhofca this really worked. I am just showing an example which I tried with 'this' keyword.

$(document.body).on('click', ".query-result table tr", function () {
    var el = $(this);
    el.closest('table').find('tr').removeClass('dotted');
    el.addClass('dotted');
});