jQuery implements the method of dynamically loading content when the page is scrolling

This article demonstrates an example of how jQuery can dynamically load content when a page is scrolling. Share with you for your reference. The specific analysis is as follows:

Many websites, such as twitter and the home page of jingdong mall, will dynamically load the page content when the page scrolls to a certain position, which can speed up the page opening and save bandwidth. The JS code below can help you do this.

var loading = false;
$(window).scroll(function(){
 if((($(window).scrollTop()+$(window).height())+250)>=$(document).height()){
  if(loading == false){
   loading = true;
   $('#loadingbar').css("display","block");
   $.get("load.php?start="+$('#loaded_max').val(), function(loaded){
    $('body').append(loaded);
    $('#loaded_max').val(parseInt($('#loaded_max').val())+50);
    $('#loadingbar').css("display","none");
    loading = false;
   });
  }
 }
});
$(document).ready(function() {
 $('#loaded_max').val(50);
});

I hope this article has been helpful to your jQuery programming.