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Example of shopping cart addition deletion and settlement function based on JQuery

  • 2021-07-26 06:50:16
  • OfStack

Some time ago, I learned that shopping cart settlement is a difficult part, and I also found one on the Internet. However, in addition to plug-ins, it is a semi-finished product on the Internet. For example, one part only has the effect of adding and deleting, and the other part only has the settlement function. It is rare to see the shopping cart effect integrated in one, so I wrote one myself, which is convenient for everyone to view
(Add effect didn't fly in, really too lazy to write animation effect, make do with it)

HTML Part 


<!DOCTYPE html> 
<html> 
<head> 
   <meta charset="utf-8"> 
   <meta http-equiv="X-UA-Compatible" content="IE=edge"> 
   <title></title> 
   <link rel="stylesheet" href="css/index.css" rel="external nofollow" > 
   <script src="http://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js" type="text/javascript" charset="utf-8"></script> 
   <script src="js/index.js" type="text/javascript" charset="utf-8" async defer></script> 
</head> 
<body> 
   <div id="banner"></div> 
   <div id="container"> 
    <ul> 
      <li num="1"><img src="images/1.jpg"/><span class="things_name">2014 Explosives in spring of A<p>$<i>10</i><span class="buy"> Click to buy </p></li> 
      <li num="2"><img src="images/2.jpg"/><span class="things_name">2014 Explosives in spring of B<p>$<i>20</i><span class="buy"> Click to buy </p></li> 
      <li num="3"><img src="images/3.jpg"/><span class="things_name">2014 Explosives in spring of C<p>$<i>30</i><span class="buy"> Click to buy </p></li> 
      <li num="4"><img src="images/4.jpg"/><span class="things_name">2014 Explosives in spring of D<p>$<i>40</i><span class="buy"> Click to buy </p></li> 
    </ul> 
   </div> 
    
   <div id="carlist"> 
    <div class="car"> 
      <div> 
        <span class="carLogo"><span><img src="images/car.png"/> 
        <span class="txt"> Purchase <br /> Thing <br /> Car  
      </div> 
       
    </div> 
    <div class="list"> 
      <!-- Add dynamic elements here --> 
      <div class="total"> 
        <span> Total price: <span>0 Yuan  
      </div> 
    </div> 
   </div> 
   <script type="text/javascript"> 
    function view(){ 
          return{ 
            w:document.documentElement.clientWidth, 
            h:document.documentElement.clientHeight 
          }; 
        } 
        document.body.style.height=view().h+"px"; 
   </script> 
</body> 
</html>

JS Part 


$(function(){ 
 var mark=0; 
 $(".car").on("click",function(){ 
   if(mark==0){ 
     $("#carlist").animate({marginRight:"0px"},500) 
     mark=1; 
   }else{ 
     $("#carlist").animate({marginRight:"-260px"},500) 
     mark=0 
   } 
 }) 
 
 
 // Click the Buy button to add to the shopping cart  
 var buyButton=$(".buy"); 
 buyButton.on("click",BuyClick) 

 function BuyClick(){ 
   var thingsName=$(this).parents("li").find(".things_name").text(); 
   var thingsPrice=$(this).parent().find("i").text(); 
   var thingsImage=$(this).parents("li").find("img").attr("src"); 
   var kNum=$(this).parents("li").attr("num") 
   var Geshu=1; 
   $(this).off("click").text(" Already added to shopping cart "); 
       
   $(".list").append('<div class="select things" num='+kNum+'><img src='+thingsImage+'/><p class="name">'+thingsName+'</p><p class="price">$<i>'+thingsPrice+'</i></p><ul class="caozuo"><li class="zengjian"><span class="minus">-<span>1<span class="add">+</li><li class="del"> Delete </li></ul></div>'); 
   countTotalPrice(); 
   totalGeshu(); 
    
   // Click the plus sign to add the number of items  
    
   $(".add").off("click").on("click",function(){ 
     Geshu=parseInt($(this).parent().find("span:nth-of-type(2)").text()) 
     Geshu++ 
     $(this).parent().find("span:nth-of-type(2)").text(Geshu) 
     countTotalPrice(); 
     totalGeshu(); 
   }) 
    
   // Dynamically generated elements click minus sign to reduce the number of goods  
   $(".minus").off("click").on("click",function(){ 
     Geshu=parseInt($(this).parent().find("span:nth-of-type(2)").text()); 
     if(Geshu>1){ 
       Geshu--; 
       $(this).parent().find("span:nth-of-type(2)").text(Geshu) 
     }else{ 
       Geshu==1; 
     } 
     countTotalPrice(); 
     totalGeshu(); 
   }) 
    
   // Delete the items in the shopping cart  
   var del=$(".del"); 
   del.each(function(){ 
     $(this).off("click").on("click",function(){ 
       var delName=$(this).parents(".things").find(".name").text(); 
       $(this).parents(".things").remove(); 
       countTotalPrice(); 
       totalGeshu(); 
       var oldBtn=$("#container ul li").find("span:contains("+delName+")").parents("li").find(".buy") 
       oldBtn.on("click",BuyClick).text(" Click to buy ") 
     }) 
   }) 
 
   // Calculate the total valence function  
   function countTotalPrice(){       
     var totalPrice=0,listThings=$(".list").find(".things"); 
     for (var i=0;i<listThings.length;i++) { 
       var this_geshu=parseInt(listThings.eq(i).find(".zengjian span:nth-of-type(2)").text()); 
       var this_price=parseInt(listThings.eq(i).find(".price i").text()); 
       totalPrice+=this_geshu*this_price; 
     } 
     $(".total span").eq(1).text(totalPrice); 
     totalGeshu(); 
   } 
    
   // Total number of items on the shopping cart  
   function totalGeshu(){ 
     var listThings=$(".list").find(".things"); 
     if (listThings.length>0) { 
       var totalGeshu=0; 
       listThings.each(function(){ 
         var this_geshu=parseInt($(this).find(".zengjian span:nth-of-type(2)").text()); 
         totalGeshu+=this_geshu; 
       }) 
       $(".carLogo span").html(totalGeshu) 
     } else{ 
       $(".carLogo span").css("display","none") 
     } 
   } 
 } 
})
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