根据Angular JS中对象数组内的数组长度排序

Question

Consider the following example,

var arrayOfObject = [
{name: 'ron', data: [1,3,5]},
{name: 'raj', data: [2,3]},
{name: 'roy', data: [1]}
]

In the view, I need to sort the objects in ascending order based on the length of data array in each objects.

In the above example roy, raj, ron.

I could always loop through the array, find the length and sort it, But was wondering if there was a way to sort it using Angular's OrderBy Filter (view or controller).

Thanks,

Answer 1

Yes your can use angular's OrderBy filter .

In view:

<div ng-repeat="item in arrayOfObject | orderBy:'data.length'">

Or in controller:

var ordered = $filter("orderBy")(arrayOfObject, "data.length");

See this jsfiddle

Answer 2

<div ng-repeat="item in array| orderBy:'data.length'>

这里orderBy接受data属性

Answer 3

We can use orderby clause

For Ascending

<div ng-repeat="item in arrayOfObject | orderBy:'data.length'">
    {{item.name}}:{{item.data.length}}
  </div>

For Descending order we need to use '-' sign (inside single quotes)

<div ng-repeat="item in arrayOfObject | orderBy:'-data.length'">
    {{item.name}}:{{item.data.length}}
  </div>

Answer 4

Try this

  <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> 

Answer 5

Try the following:

 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); }]); 

 <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script> <div ng-app='myApp' ng-controller='myController'> </div>