我在 Angular 中创建了这个应用程序，作为一种练习，似乎无法将金额添加到总值(value)中...这是我需要输入总金额的代码。
<body>
<div class="container" ng-app="myApp" ng-controller="namesCtrl">
<div class="col-sm-6"><br>
<button class="btn btn-default" ng-click="myFunc()">Show me the Table</button><br>
<div ng-show="showMe">
<table class="table" width="80%" border="2px">
<tr class="panel panel-default">
<th> Names</th>
<th>Country</th>
<th>Amount</th>
</tr>
<tr ng-repeat= "x in names">
<td class="info"> {{x.name}}</td>
<td class="danger">{{x.country}}</td>
<td class="default">{{x.amount}}</td>
</tr>
</table>
</div>
</div>
</div>
<script>
var app=angular.module("myApp", []);
app.controller("namesCtrl", function($scope){
$scope.names = [
{name:'Jani',country:'Norway', amount:'321'},
{name:'Carl',country:'Sweden',amount:'2231'},
{name:'Margareth',country:'England',amount:'521'},
{name:'Hege',country:'Norway',amount:'1720'},
{name:'Joe',country:'Denmark',amount:'376'},
{name:'Gustav',country:'Sweden',amount:'3040'},
{name:'Birgit',country:'Denmark',amount:'1115'},
{name:'Mary',country:'England',amount:'4501'},
{name:'Kai',country:'Norway',amount:'4533'}
];
$scope.showMe=false;
$scope.myFunc=function(){
$scope.showMe=!$scope.showMe;
}
});
</script>
</body>
</html>
了解如何将金额添加到总值(value)中会对我很有帮助。
最佳答案
$scope.total = $scope.names.reduce((a, v) => a + parseInt(v.amount));
请注意，如果您的金额包含十进制值，则需要使用 parseFloat() 而不是 parseInt()。
这是一个完整的片段:
var $scope = {};
$scope.names = [
{name:'Jani',country:'Norway', amount:'321'},
{name:'Carl',country:'Sweden',amount:'2231'},
{name:'Margareth',country:'England',amount:'521'},
{name:'Hege',country:'Norway',amount:'1720'},
{name:'Joe',country:'Denmark',amount:'376'},
{name:'Gustav',country:'Sweden',amount:'3040'},
{name:'Birgit',country:'Denmark',amount:'1115'},
{name:'Mary',country:'England',amount:'4501'},
{name:'Kai',country:'Norway',amount:'4533'}
];
$scope.total = $scope.names.reduce((a, v) => a + parseInt(v.amount), 0);
console.log($scope.total);关于javascript - 在 Angular 中添加字符串数组，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/43109209/