How to implement basic shopping cart functionality using Angular
This article mainly introduces Angular's implementation of the shopping cart function that can delete and calculate the total amount, involving AngularJS event response, element traversal and numerical operations and other related operating skills. Friends in need can refer to this article
The example describes how Angular implements the shopping cart function that can delete and calculate the total amount. Share it with everyone for your reference, the details are as follows:
First look at the running effect:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>www.jb51.net angular可删除与计算总额的购物车</title>
<script src="angular.min.js"></script>
<style>
table{
width: 500px;
height: 300px;
border-collapse: collapse;
text-align: center;
}
td{
border: 1px solid black;
}
</style>
<script>
var myapp=angular.module("myapp",[]);
myapp.controller("myCtrl",function ($scope) {
$scope.goods=[{
gname:"iphone8",
num:"3",
price:"999"
},{
gname: "iphone7",
num: "4",
price: "599"
},{
gname: "iphone6",
num: "5",
price: "499"
},{
gname: "iphone5",
num: "6",
price: "399"
}
];
$scope.allSum=function () {
var allPrice=0;
for(var i=0;i<$scope.goods.length;i++){
allPrice+=$scope.goods[i].price*$scope.goods[i].num;
}
return allPrice;
};
$scope.remove=function (index) {
if(confirm('确定移除此项嘛？')){
$scope.goods.splice(index,1);
}
if($scope.goods.length==0){
alter('你的购物车为空');
}
};
})
</script>
</head>
<body ng-app="myapp" ng-controller="myCtrl">
<table>
<tr>
<td colspan="5">你的购物车</td>
<tr>
<td>商品名称</td>
<td>数量</td>
<td>单价</td>
<td>小计</td>
<td>操作</td>
</tr>
<tr ng-repeat="arr in goods">
<td>{{arr.gname}}</td>
<td>{{arr.num}}</td>
<td>{{arr.price|currency:"RMB￥"}}</td>
<td>{{arr.num*arr.price|currency:"RMB￥"}}</td>
<td><button ng-click="remove($index)">删除</button></td>
</tr>
<tr>
<td colspan="5">总金额<span ng-bind="allSum()|currency:'RMB'"></span></td>
</tr>
</table>
</body>
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