如何遍历 $firebaseArray [英] How to loop through $firebaseArray

问题描述

我像这样创建了一组用户 -

I created an array of users like so -

var ref = new Firebase(FIREBASE_URL + '/users');
var users = $firebaseArray(ref);

我已经添加了对象，我想遍历这个数组中的每个用户.我知道这在使用 ng-repeat 的视图中是可能的，但我需要在控制器中进行.我试过了 -

I have added objects to this and I want to loop through each of the users in this array. I know this is possible in the view using ng-repeat, but I need to do it in the controller. I have tried -

angular.forEach(users, function(user) {
    console.log(user);
})

但我没有得到任何结果.

But I get no result from this.

推荐答案

届时可能尚未加载用户，因此您需要等待:

Users probably isn't loaded by then, so you'll need to wait for it:

var ref = new Firebase(FIREBASE_URL + '/users');
var users = $firebaseArray(ref);

users.$loaded()
    .then(function(){
        angular.forEach(users, function(user) {
            console.log(user);
        })
    });

这是它的文档:https://www.firebase.com/docs/web/libraries/angular/guide/intro-to-angularfire.html#section-async-intro

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