我尋找這個問題的解決方案獲取過濾數組的長度:AngularJS通過NG-如果
當我們用NG-如果在陣列過濾的數據(創建者NG-重複),我們怎麼能拿到過濾數組的長度?例如,如果我們知道如何做到這一點,我們可以知道有多少用戶在線,例如(我知道我們可以找到另一個解決方案,但我真的想知道我們是否可以通過ng-if獲得過濾數組的長度)。
HTML:
<div id="body">
<div ng-controller="startController">
<p ng-repeat="user in lists" ng-if="user.dispo == true">{{user.name}}</p>
Il y a {{lists.length}} membres connectées. <br> <br>
(Normally, whe must have only 4 members online ...)
</div>
</div>
JS:
angular.module('app', [])
.controller('startController', ['$scope', function($scope) {
$scope.lists = [{
id: 0,
name: 'Ambre',
situation: 'confirmed',
lastText: 'Tu vas bien ?',
dispo: true,
face: 'img/girl1.jpg',
age: 19,
gender: 'female',
inChat: false,
description: ":p"
}, {
id: 1,
name: 'Mélanie',
lastText: 'J\'habite à Marseille !',
situation: 'waiting',
dispo: false,
face: 'img/girl2.jpg',
age: 21,
gender: 'female',
inChat: false,
description: "Vive la vie ! "
}, {
id: 2,
name: 'Lana',
lastText: 'Ça marche à demain :)',
situation: 'confirmed',
dispo: true,
face: 'img/girl3.jpg',
age: 18,
gender: 'female',
inChat: true,
description: "Je suis bavarde ! "
}, {
id: 3,
name: 'Vicky',
lastText: 'Serveuse et toi ?',
situation: 'waiting',
dispo: true,
face: 'img/girl4.jpg',
age: 22,
gender: 'female',
inChat: false,
description: "Snap : Vickdng "
}, {
id: 4,
name: 'Mina',
lastText: 'Je ne sais pas ...',
situation: 'confirmed',
dispo: true,
face: 'img/girl5.jpg',
age: 26,
gender: 'female',
inChat: false,
description: 'Jeune toulousaine ne cherchant rien en particulier. '
}];
}]);
setTimeout(function() {
angular.bootstrap(document.getElementById('body'), ['app']);
});
我這裏創建的jsfiddle:http://jsfiddle.net/PositivProd/51bsbzL0/319/
的可能的複製[如何在NG-IF和可變使用過濾器?(https://stackoverflow.com/questions/31455567/how-to-use-filter-in -ng-if-and-variable) – Mistalis