我在我的应用程序中使用 MEAN 堆栈，并将 AngularJS 作为我的前端。如何在 angularjs 中对数组值内部求和，实际上我们在另一个 ng-repeat 中使用了 ng-repeat 来获取表中的值，我在 中得到了像 然后我希望对 250 这样的获取值Spricesprice 值求和，如 ans= 250。
我们使用了两次 ng-repeat 来获取表中的
sprice值，因为sprice在 [array] 内部。我们需要计算表中值的
价格的总和。我们有过滤器功能来计算 ng-module 值的总和，如果它在没有数组的情况下。
实际上我们不知道如何在 ng-repeat 中使用
resultValue=。例如:表中的 sprice 值为 250 表示总和值需要在
250中，如果 sprice 值为 250 和 300 则表示期望得到像550这样的答案>.没有
array总和功能:My Plunker使用
array总和功能:My Plunker
我的 Controller :
.filter('sumOfValue', function () {
return function (data, key) {
debugger;
if (angular.isUndefined(data) && angular.isUndefined(key))
return 0;
var sum = 0;
angular.forEach(data,function(v,k){
sum = sum + parseFloat(v[key]);
});
return sum.toFixed(2);
}
})
我的数据:-
$scope.orders = [
{
"_id": "5836b64083d9ce0f0078eae8",
"user": {
"_id": "579bdf6123f37f0e00a40deb",
"displayName": "Table 1"
},
"__v": 8,
"total": "1824",
"ordercar": [],
"orderfood": [
{
"qty": "1",
"confirm": "placed",
"sprice": 250,
"price": 250,
"customise": "With Onion,Without Onion",
"name": "Baasha Pizza"
}
],
"phone": null,
"order_source": "",
"comment": "",
"payment_mode": "",
"nop": null,
"rating": null,
"bill": false,
"complete": false,
"laundry": false,
"clean": false,
"roomservice": false,
"napkin": false,
"waiter": false,
"water": false,
"name": "fgg",
"created": "2016-11-24T09:43:28.413Z",
"isCurrentUserOwner": true
}]
我的 Html:-
<table ng-table="tableParams" class="table table-bordered ">
<thead>
<tr>
<th rowspan="2">s.no</th>
<th rowspan="2"> sprice </th>
</tr>
</thead>
<tr ng-repeat="order in orders">
<td>{{$index + 1}}</td>
<td ng-repeat="ram in order.orderfood">{{ram.sprice }}</td>
</tr>
<tr>
<td>sum</td>
<td>{{resultValue | sumOfValue:'sprice'}}</td>
</tr>
</table>
*我们期望数组值中的总和。
使用 ng-repeat:
<tr ng-repeat="order in orders">
<td>{{$index + 1}}</td>
<td ng-repeat="ram in order.orderfood">{{ram.sprice }}</td>
最佳答案
ng-repeat 没有正确循环。我修复了它。检查下面的代码片段，我还向它添加了一个数组.........让我知道。 .
var app = angular.module('plunker', []);
app.filter('sumOfValue', function () {
return function (data, key) {
debugger;
if (angular.isUndefined(data) && angular.isUndefined(key))
return 0;
var sum = 0;
angular.forEach(data,function(v,k){
sum = sum + parseFloat(v[key]);
});
return sum.toFixed(2);
}
}).controller('MainCtrl', function($scope) {
$scope.orders = [
{
"_id": "5836b64083d9ce0f0078eae8",
"user": {
"_id": "579bdf6123f37f0e00a40deb",
"displayName": "Table 1"
},
"__v": 8,
"total": "1824",
"ordercar": [],
"orderfood": [
{
"qty": "1",
"confirm": "placed",
"sprice": 250,
"price": 250,
"customise": "With Onion,Without Onion",
"name": "Baasha Pizza"
},
{
"qty": "2",
"confirm": "placed",
"sprice": 250,
"price": 250,
"customise": "With Onion,Without Onion",
"name": "Baasha Pizza"
}
],
"phone": null,
"order_source": "",
"comment": "",
"payment_mode": "",
"nop": null,
"rating": null,
"bill": false,
"complete": false,
"laundry": false,
"clean": false,
"roomservice": false,
"napkin": false,
"waiter": false,
"water": false,
"name": "fgg",
"created": "2016-11-24T09:43:28.413Z",
"isCurrentUserOwner": true
}]
});body {
font-size: 14px;
}
table
{
border-collapse:collapse;
}
table, td, th
{
border:1px solid black;
}
td{
padding: 2px;
}
.servicetaxinclusivetrue:before{
color: green!important;
content: "\f00c";
}
.servicetaxinclusivefalse:before{
color: red!important;
content: "\f00d";
}
.servicetaxexclusivetrue:before{
color: green!important;
content: "\f00c";
}
.servicetaxexclusivefalse:before{
color: red!important;
content: "\f00d";
}<!DOCTYPE html>
<html ng-app="plunker">
<head>
<meta charset="utf-8" />
<title>AngularJS Plunker</title>
<script>document.write('<base href="' + document.location + '" />');</script>
<link rel="stylesheet" href="http://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.6.3/css/font-awesome.min.css">
<script data-require="angular.js@1.4.x" src="https://code.angularjs.org/1.4.12/angular.js" data-semver="1.4.9"></script>
</head>
<body ng-controller="MainCtrl">
<table ng-table="tableParams" class="table table-bordered ">
<thead>
<tr>
<th rowspan="2">s.no</th>
<th rowspan="2"> sprice </th>
</tr>
</thead>
<tbody ng-repeat="order in orders">
<tr ng-repeat="ram in resultValue=(order.orderfood)">
<td>{{$index + 1}}</td>
<td >{{ram.sprice }}</td>
</tr>
<tr>
<td>sum</td>
<td>{{resultValue | sumOfValue:'sprice'}}</td>
</tr>
</tbody>
</table>
</body>
</html>关于html - 如何在 Angularjs 中计算数组值内部的总和？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/40785789/