javascript - How to use jQuery to check if an element is added to page? -

So I am using, and when I scrolled X pixels, add new objects to the page Will go

(I want to check how I have been added to a new element ( class or id ) or not because because if a new Element is added then I want to do some jQuery on the new element.)

just use it. Length, to check that it exists, after an append ()

  $ ('# elemId'). Length;   
 It is ...  
  if ($ ('# elemId'). Length> 0) {// Your code here} ;   
 Or type your own function ....  
  jQuery.fn.Exists = function () {return jQuery (this). Length> 0; };   
 Then use it to return true or false ...  
  if ($ ('# elemId'). Exists ()) { // your code here};   
 Or you can use the livequery () plugin ...  
  $ ('# elemID'). Livequery (function () {// do things binding here are new events and stuff like this // This function is called when an object is added. // Check the function of the delete function and similarly. });   
 I can not find more plugin on the jQuery website, but it was present at one point  
 You can also try domaineinded ... < / P> 
  $ (document) .bind ('Dominied', function (e) {console.log (e.target, 'was inserted');});   
 You can use it on () .... If your selector is always the same ...  
 For example, as you scroll , You say always adding a new div named class = "new device" ....  
 Then you want to do the jackpot .... if you force to click on an event Want to ...    $ (document) .on ('click', '.newdiv', function () {// your code here});