京东前端第一题，本地能实现但是通过是百分值0的宝宝们
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<style>
body,html{
padding: 0;
margin: 0;
font-size: 14px;
color: #000000;
}
table{
border-collapse: collapse;
width: 100%;
table-layout: fixed;
}
thead{
background: #3d444c;
color: #ffffff;
}
td,th{
border: 1px solid #e1e1e1;
padding: 0;
height: 30px;
line-height: 30px;
text-align: center;
}
</style>
<body>
<table id="jsTrolley">
<thead><tr><th>名称</th><th>价格</th><th>操作</th></tr></thead>
<tbody>
<tr><td>产品1</td><td>10.00</td><td><a href="javascript:void(0);">删除</a></td></tr>
<tr><td>产品2</td><td>30.20</td><td><a href="javascript:void(0);">删除</a></td></tr>
<tr><td>产品3</td><td>20.50</td><td><a href="javascript:void(0);">删除</a></td></tr>
</tbody>
<tfoot><tr><th>总计</th><td colspan="2">60.70(3件商品)</td></tr></tfoot>
</table>
<script>
function add(items){
var tbody = document.querySelectorAll("#jsTrolley tbody");
for(var z=0;z<items.length;z++){
var trNew = document.createElement("tr");
for(var i =0;i<3;i++){
var tdNew = createEle();
switch(i){
case(0):{
tdNew.innerHTML=items[z]["name"];
trNew.appendChild(tdNew);
}break;
case(1):{
tdNew.innerHTML=items[z]["price"];
trNew.appendChild(tdNew);
}break;
case(2):{
var aTag = document.createElement("a");
aTag.href="javascript:void(0)";
aTag.innerHTML="删除";
tdNew.appendChild(aTag)
trNew.appendChild(tdNew);
}break;
}
}
tbody[0].appendChild(trNew);
}
//tfoot内容更新
var price=0;
var tfoot=document.querySelectorAll("#jsTrolley tfoot");
var tfootCon = document.querySelectorAll("#jsTrolley tfoot tr td")
var tbodyTd = document.querySelectorAll("#jsTrolley tbody tr td");
var tbodyTr = document.querySelectorAll("#jsTrolley tbody tr");
var len = tbodyTr.length;
for(var n =0;n<tbodyTr.length;n++){
price = Number(tbodyTr[n].childNodes[1].innerHTML)+price;
}
str=price+"("+len+"件商品)";
console.log(str);
tfootCon[0].innerHTML=str;
}
function createEle(){
var tdNew = document.createElement("td");
return tdNew;
}
function bind(){
var arr=[];
var tbodyTr = document.querySelectorAll("#jsTrolley tbody tr");
var tbody = document.querySelectorAll("#jsTrolley tbody ");
var tbodyTrA = document.querySelectorAll("#jsTrolley tbody tr td a");
for(let i = 0;i<tbodyTrA.length;i++){
tbodyTrA[i].onclick=function(){
tbodyTr[i].style.display="none";
var price=0;
var tfoot=document.querySelectorAll("#jsTrolley tfoot");
var tfootCon = document.querySelectorAll("#jsTrolley tfoot tr td")
var tbodyTd = document.querySelectorAll("#jsTrolley tbody tr td");
var len = 0;
for(var n =0;n<tbodyTr.length;n++){
if(tbodyTr[n].style.display=="none"){
continue;
}else{
len++;
price = Number(tbodyTr[n].childNodes[1].innerHTML)+price;
}
}
str=price+"("+len+"件商品)";
console.log(str);
tfootCon[0].innerHTML=str;
}
}
}
var items=[{"name":"产品4","price":"5.00"},{"name":"产品5","price":"5.00"}];
add(items);
bind();
var tfootCon = document.querySelectorAll("#jsTrolley tfoot tr td")
tfootCon.innerHTML="bihao";
</script>
</body>
</html> #京东#
