Implementing a shopping cart with native JavaScript

This article shares the specific code of JavaScript to implement the shopping cart for your reference. The specific content is as follows

Effect:

Code:

<!DOCTYPE html>
<html>
 <head>
 <meta charset="UTF-8">
 <title></title>
 <style>
 *{
 margin: 0;
 padding:0;
 }
 .box{
 width:600px;
 margin: 10px auto;
 background: url(img/g.jpg) ;
 height:500px;
 }
 td{
 text-align: center;
 font-size: 30px;
 color:orange;
 }
 button{
 width:150px;
 border:0;
 border-radius: 5px;
 height:30px;
 background-color: dodgerblue;
 }
 
 /*.trl:hover{
 background:pink;
 }*/
 
 </style>
 </head>
 <body>
 <div class="box">
 <br />
 <button>Delete All</button>
 <button>Select Delete</button>
 <br>
 <br>
 <input type="text" value="Please enter keywords" />
 <input type="button" value="Search" />
 
 <br>
 <br>
 <table width='600' border="1" cellspacing="0">
 <tr>
  <th><input type="checkbox" class="qx" />Select all</th>
  <th>Products</th>
  <th>Price</th>
  <th>Serial Number</th>
  <th>Origin</th>
  <th>Brand</th>
  <th>Operation</th>
 </tr>
 <tr class="trl">
  <td><input type="checkbox" class="dx" /></td>
  <td class="shop">Durian</td>
  <td>20 yuan</td>
  <td class="ind">1</td>
  <td>Hainan</td>
  <td>Anpai</td>
  <td onclick="del(this)">Delete</td>
 </tr>
 <tr class="trl">
  <td><input type="checkbox" class="dx" /></td>
  <td class="shop">Apple</td>
  <td>20 yuan</td>
  <td class="ind">2</td>
  <td>Hainan</td>
  <td>Anpai</td>
  <td onclick="del(this)">Delete</td>
 </tr>
 <tr class="trl">
  <td><input type="checkbox" class="dx" /></td>
  <td class="shop">Strawberry</td>
  <td>20 yuan</td>
  <td class="ind">3</td>
  <td>Hainan</td>
  <td>Anpai</td>
  <td onclick="del(this)">Delete</td>
 </tr>
 <tr class="trl">
  <td><input type="checkbox" class="dx" /></td>
  <td class="shop">Banana</td>
  <td>20 yuan</td>
  <td class="ind">4</td>
  <td>Hainan</td>
  <td>Anpai</td>
  <td onclick="del(this)">Delete</td>
 </tr>
 </table>
 </div>
 <script>
//Select all or deselect none var qx=document.getElementsByClassName('qx')[0];
   var dx = document.getElementsByClassName("dx");
   qx.onclick=function(){
    for(var i=0;i<dx.length;i++){
    dx[i].checked=qx.checked
    }
   }
 //Delete all var btn=document.getElementsByTagName("button");
   var tr = document.getElementsByTagName('tr');
   var tbody = document.getElementsByTagName("tbody")[0];
   btn[0].onclick=function(){
    for(var i=1;i<tr.length;i++){
     tbody.removeChild(tr[i]);
     i--;
    }       
   }
 //Select and delete var dx=document.getElementsByClassName('dx');
   btn[1].onclick=function(){
   for(var i=0;i<dx.length;i++){
    if(dx[i].checked==true){
    tbody.removeChild(dx[i].parentNode.parentNode)
    i--;
    indChange();
    }
   }
   }
 // Clear the text box to search and change the color var input = document.getElementsByTagName('input');
  
  input[0].onfocus=function(){
  this.value=""
  }
  
  var shop = document.getElementsByClassName('shop');
  
  input[1].onclick=function(){
   for(var i=0;i<shop.length;i++){
   
   if(shop[i].innerHTML==input[0].value){
   for(var j=0;j<shop.length;j++){
   shop[j].parentNode.style.background=""
   }
   shop[i].parentNode.style.background="yellow"
   }
   }
  }
  
// 
//Move in and out hover 
  for(var i=1;i<tr.length;i++){
  tr[i].onmouseover=function(){
  this.style.background="pink"
  }
  tr[i].onmouseout=function(){
  this.style.background=""
  }
  
  }

// Single row deletion (serial number)
// Parent element.removeChild(child element) tbody delete tr
 function del(t){
  tbody.removeChild(t.parentNode);
  indChange();
 }
 
 
 //Serial number function indChange(){
  var ind = document.getElementsByClassName("ind");
  for(var i=0;i<ind.length;i++){
  ind[i].innerHTML=i+1;
  }
 }
 
 
 </script>
 </body>
</html>

The above is the full content of this article. I hope it will be helpful for everyone’s study. I also hope that everyone will support 123WORDPRESS.COM.

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