How to check a div is exists or not?
 Possible Duplicate:  
 Is there an “exists” function for jQuery  
 <div class="XXX">
  <div class="created">
  </div>
</div>
 div class="created" automatically generated by JavaScript using append function jQuery for some validation i need to check whether div is generated or not how can i do this.using jQuery.  
 something like $('.xxx').html()==' '  
Try this like following:
$('div.XXX div.created').length
 if the div is not create then $('div.XXX div.created').length will return 0.  
if( $('div.XXX div.created').length > 0 ){
  // do something 
}
 In jQuery, it has method .size() and implement like $('div.XXX div.created').size() , but .length is more reliable.  
你可以使用jQuery length属性返回所选元素的数量: 
if ($('.XXX div.created').length > 0) {
}
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