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分享程序员开发的那些事...
且构网 - 分享程序员编程开发的那些事

Jquery - 在追加后执行回调

更新时间:2023-12-04 23:29:40

jQuery的 .each() 接受一个回调函数并将其应用到jQuery对象中的每个元素。



想象这样:

  $('a.ui-icon-cart')click(function(){
$(this).closest('li')。clone ).appendTo('#cart ul')。each(function(){
$(this).find('h5')。remove();
$(this).find ').css({'height':'40px','width':'40px'});
$(this).find('li')。css({'height':'60px' ,'width':'40px'});
});
});

您也可以存储结果,然后改为:

  $('a.ui-icon-cart')click(function(){
var $ new = $(this).closest 'li')。clone()。appendTo('#cart ul')
$ new.find('h5')。remove();
$ new.find('img')。css ({'height':'40px','width':'40px'});
$ new.find('li')。css({'height':'60px','width' 40px'});
});

我也建议,不是mofiying CSS,像你只是添加一个类到你克隆的li像这样:

  $(this).closest('li')。clone()。addClass(new-item ).appendTo('#cart ul'); 

然后设置一些样式:

  .new-item img,.new-item li {height:40px; width:40px; } 
.new-item h5 {display:none}


I am appending content to a list using:

  $('a.ui-icon-cart').click(function(){
         $(this).closest('li').clone().appendTo('#cart ul');
  });

I want to perform further functions to the appended content (change class, apply animations etc)

How can I perform a callback on this function that will allow me to perform functions on the appended data?

jQuery's .each() takes a callback function and applies it to each element in the jQuery object.

Imagine something like this:

$('a.ui-icon-cart').click(function(){
  $(this).closest('li').clone().appendTo('#cart ul').each(function() {
    $(this).find('h5').remove(); 
    $(this).find('img').css({'height':'40px', 'width':'40px'});
    $(this).find('li').css({'height':'60px', 'width':'40px'});
  });
});

You could also just store the result and work on it instead:

$('a.ui-icon-cart').click(function(){
  var $new = $(this).closest('li').clone().appendTo('#cart ul')
  $new.find('h5').remove(); 
  $new.find('img').css({'height':'40px', 'width':'40px'});
  $new.find('li').css({'height':'60px', 'width':'40px'});
});

I would also suggest that instead of mofiying the CSS like that you just add a class to your cloned li like this:

$(this).closest('li').clone().addClass("new-item").appendTo('#cart ul');

Then setup some styles like:

.new-item img, .new-item li { height: 40px; width: 40px; }
.new-item h5 { display: none }