如何通过$ firebaseArray循环 [英] How to loop through $firebaseArray

问题描述

我创建了一个像这样的用户数组 -

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

我已经添加了对象到这个，我想遍历这个数组中的每个用户。我知道这是可能的使用ng-repeat的视图，但我需要在控制器中执行。我已经试过 - $ /

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


但是我没有得到这个结果。 pre> var ref = new Firebase（FIREBASE_URL +'/ users'）;
var users = $ firebaseArray（ref）;

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


以下是文档： https://www.firebase.com/docs/web/libraries/angular/guide/intro-to-angularfire .html＃section-async-intro

I created an array of users like so -

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

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);
})

But I get no result from this.

解决方案

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);
        })
    });

Here's the docs on it: https://www.firebase.com/docs/web/libraries/angular/guide/intro-to-angularfire.html#section-async-intro

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