Javascript 获取ng内的总和值,重复使用角度js
我使用ng repeat来重复json数组。我使用dayDiff()函数计算了夜晚。现在我想拿到所有的发票。我正在使用angularjs 如何获取所有发票的总住宿Javascript 获取ng内的总和值,重复使用角度js,javascript,html,angularjs,Javascript,Html,Angularjs,我使用ng repeat来重复json数组。我使用dayDiff()函数计算了夜晚。现在我想拿到所有的发票。我正在使用angularjs 如何获取所有发票的总住宿 <table class="table" ng-show="filteredItems > 0"> <tr> <td>No</td> <td>Invoice No</td> <td>Name
<table class="table" ng-show="filteredItems > 0">
<tr>
<td>No</td>
<td>Invoice No</td>
<td>Name</td>
<td>Eamil</td>
<td>Room Name</td>
<td>Check In Date</td>
<td>Check Out Date</td>
<td>No. Room</td>
<td>Night(s)</td>
<td>Booking Date</td>
<td>Amount</td>
</tr>
<tr ng-repeat="data in filtered = (list | filter:search ) | startFrom:(currentPage-1)*entryLimit | limitTo:entryLimit">
<td>{{$index+1}}</td>
<td>{{data.invoicenumber}}</td>
<td>{{data.firtname}}{{data.lastname}}</td>
<td>{{data.email}}</td>
<td>{{data.roomname}}</td>
<td ng-model='fromDate'>{{data.cidt}}</td>
<td ng-model='toDate'>{{data.codt}}</td>
<td>{{data.qty}}</td>
<td ng-model='night'>{{dayDiff(data.cidt,data.codt)}}</td>
<td>{{data.bdt}}</td>
<td>{{data.btotal}}</td>
</tr>
</table>
不
发票号
名称
埃米尔
房间名称
登记日期
退房日期
不,房间
晚上(s)
预订日期
数量
{{$index+1}}
{{data.invoicenumber}
{{data.firtname}{{data.lastname}}
{{data.email}
{{data.roomname}
{{data.cidt}
{{data.codt}
{{data.qty}
{{dayDiff(data.cidt,data.codt)}
{{data.bdt}
{{data.btotal}
首先需要添加一行。这一额外的行将如下所示:
<tr>
<td colspan="11">Total nights: {{calcTotal(filtered)}}</td>
</tr>
总夜数:{{calcTotal(过滤)}
然后在控制器中,您需要添加一个函数来计算夜晚,如
$scope.calcTotal = function(filtered){
var sum = 0;
for(var i = 0 ; i<filtered.length ; i++){
sum = sum + filtered[i].nights;
}
return sum;
};
$scope.calcTotal=函数(已过滤){
var总和=0;
对于(var i=0;i您可以首先使用JSON模型的工厂来存储计算的夜间:
// We inject the dayDiff function via the dayDiffService service
angular.factory('invoice', ['dayDiffService', function(dayDiffService) {
var Invoice = function(data) {
// merge json properties to self
angular.merge(this, data);
// we compute the night(s)
this.nights = dayDiffService.dayDiff(data.cidt, data.codt);
}
return Invoice;
}]);
然后,在控制器中,添加一个函数,从过滤列表中总结夜晚:
angular.controller('invoicesCtrl', ['$scope', 'invoice', function($scope, Invoice) {
$scope.list = [];
// let's say that JSON holds your json model from http's response
$scope.list = JSON.map(function() {
return new Invoice(i)
});
$scope.sumNights = function(filtered) {
filtered.reduce(function(sum, invoice) {
sum += invoice.nights;
sum
}, 0);
}
}]);
然后,在html中添加新行以显示计算结果:
<div ng-controller="invoicesCtrl as vm">
<table>
...
<tbody>
<tr ng-repeat="data in filtered = (vm.list | filter:search ) | startFrom:(currentPage-1)*entryLimit | limitTo:entryLimit">
<td>{{$index+1}}</td>
...
<tr>
</tbody>
<tfoot>
<tr>
<td colspan="8"></td
<td>{{vm.sumNights(filtered)}}</td
<td colspan="2"></td
</tr>
</tfoot>
</table>
</div>
...
{{$index+1}}
...
您可以为您的Json模型创建一个工厂,该工厂将具有夜间计算属性。然后,您可以创建一个函数,将筛选后的数组作为参数,该函数将输出所有夜间的总和。请提供JSFIDDLE。还请注意,您的ng show可以通过ng show=“filtered.length>0”简化