ng-repeat不动态添加新项目 [英] ng-repeat not adding new items dynamically
问题描述
我是Angular JS(1)的新手，并且ng-repeat遇到问题.我在Angular中使用socket.io.这是我的控制器:
I am new to Angular JS (1) and I am having issues with ng-repeat. I am using socket.io with Angular. Here is my controller:
var messagingApp = angular.module('messagingApp', []);
function mainController($scope) {
var socket = io.connect();
socket.on('message', function(data){
$scope.users.push({'Name': 'yeh'});
console.log($scope.users);
});
$scope.users = []; //if I put stuff here and comment out socket stuff, it shows in the front-end
};
messagingApp.controller('mainController',mainController);
我可以看到它正在块内(通过console.log)进入.但是，它没有在前端显示任何内容.我的前端如下:
I can see that it is going inside that on block (via console.log). However, it is not displaying anything to the front-end. My front-end is as follows:
<body ng-controller="mainController">
<div ng-repeat="user in users">
<p>{{ user.Name }}</p>
</div>
我的理解是，如果更改模型(在这种情况下为用户)，它将自动更新ng-repeat.任何帮助将不胜感激.
My understanding is that if you change the model (users in this case), it should automatically update the ng-repeat. Any help would be appreciated.
推荐答案
在推送到数组后添加$ scope.$ apply().因为您要在角度范围之外更新模型.因此，angularjs不知道该模型已更新.有关$ scope.$ apply的更多信息 http://tutorials.jenkov.com/angularjs/watch-digest-apply.html
Add $scope.$apply() after pushing to the array. Because you are updating the model outside of the angular scope. So the angularjs doesnot know the model has been updated. More about $scope.$apply http://tutorials.jenkov.com/angularjs/watch-digest-apply.html
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