考虑以下示例,
var arrayOfObject = [
{name: 'ron', data: [1,3,5]},
{name: 'raj', data: [2,3]},
{name: 'roy', data: [1]}
]
在视图中,我需要根据每个对象中data
数组的长度按升序对对象进行排序。
在上面的例子中,roy,raj,ron。
我总是可以遍历数组,查找长度并对其进行排序,但是想知道是否有办法使用 Angular的OrderBy过滤器(视图或控制器)对其进行排序。
谢谢,
答案 0 :(得分:2)
是的,你可以使用棱角分明的OrderBy filter。
在视图中:
<div ng-repeat="item in arrayOfObject | orderBy:'data.length'">
或在控制器中:
var ordered = $filter("orderBy")(arrayOfObject, "data.length");
答案 1 :(得分:2)
<div ng-repeat="item in array| orderBy:'data.length'>
此处orderBy
具有data
答案 2 :(得分:2)
我们可以使用orderby子句
升序
DOT:
对于降序,我们需要使用&#39; - &#39;标志(单引号内)
<div ng-repeat="item in arrayOfObject | orderBy:'data.length'">
{{item.name}}:{{item.data.length}}
</div>
答案 3 :(得分:1)
试试这个
<div ng-repeat="item in arrayOfObject | orderBy:'data.length'">
{{item.name}}:{{item.data.length}}
</div>
var app = angular.module("app", []);
app.controller("ctrl", function($scope) {
$scope.arrayOfObject = [{
name: 'ron',
data: [1, 3, 5]
},
{
name: 'raj',
data: [2, 3]
},
{
name: 'roy',
data: [1]
}
];
});
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="app" ng-controller="ctrl">
ASEC:
<div ng-repeat="item in arrayOfObject | orderBy:'data.length'">
{{item.name}}:{{item.data.length}}
</div>
<br/>
DESC:
<div ng-repeat="item in arrayOfObject | orderBy:-'data.length'">
{{item.name}}:{{item.data.length}}
</div>
</div>
答案 4 :(得分:1)
尝试以下方法:
var myApp = angular.module('myApp', []);
myApp.controller('myController', ['$scope', '$filter', function($scope, $filter){
var arrayOfObject = [
{name: 'ron', data: [1,3,5]},
{name: 'raj', data: [2,3]},
{name: 'roy', data: [1]}
]
$scope.arrayOfObject = $filter("orderBy")(arrayOfObject, 'data.length');
console.log($scope.arrayOfObject);
}]);
&#13;
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app='myApp' ng-controller='myController'>
</div>
&#13;