我是角色新手并试图实现添加到列表功能。我有几个问题
console.log
$scope.newChat
返回 undefined newChat
由于变量提升而sendChat()
可用。 模板
<ion-list>
<ion-item class="item-remove-animate item-avatar item-icon-right" ng-repeat="chat in chats" type="item-text-wrap" href="#/tab/chats/{{chat.id}}">
<img ng-src="{{chat.face}}" >
<h2>{{chat.name}}</h2>
<p>{{chat.lastText}}</p>
<i class="icon ion-chevron-right icon-accessory"></i>
<ion-option-button class="button-assertive" ng-click="remove(chat)">
Delete
</ion-option-button>
</ion-item>
<ion-item >
<form ng-submit="sendChat(newchat)"> <!-- this line in question 2 -->
<label class="item item-input">
<input type="text" placeholder="What do you need to do?" ng-model="newchat.lastText">
<button type="submit" class="button button-right button-positive">Send</button>
</label>
</div>
</form>
</ion-item>
</ion-list>
控制器
.controller('ChatsCtrl', function($scope, Chats) {
$scope.chats = Chats.all();
$scope.remove = function(chat) {
Chats.remove(chat);
}
$scope.sendChat = function(newchat){
Chats.set(newchat);
console.log($scope.newchat); //this line in question 1
newchat.lastText = "";
}
})
答案 0 :(得分:0)
1)为什么$ scope.newChat的console.log返回undefined
您正在获得范围console.log($scope.newchat);
的新聊天尝试使用console.log(newchat);
的控制台日志记录它们都与ng-model中的新聊天相同,使其在范围内可用。在下面的演示中单击发送按钮后查看控制台
2)由于变量提升,newChat是否可用于sendChat()调用。
由于ng-model数据绑定而无法使用
<强>演示强>
angular.module('myApp',[])
.controller('ChatsCtrl', function($scope) {
//$scope.chats = Chats.all();
$scope.remove = function(chat) {
//Chats.remove(chat);
}
$scope.sendChat = function(newchat){
// Chats.set(newchat);
console.log($scope.newchat); //this line in question 1
newchat.lastText = "";
}
})
&#13;
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="myApp" ng-controller="ChatsCtrl"> <form ng-submit="sendChat(newchat)"> <!-- this line in question 2 -->
<label class="item item-input">
<input type="text" placeholder="What do you need to do?" ng-model="newchat.lastText">
<button type="submit" class="button button-right button-positive">Send</button>
</label>
</form>
</div>
&#13;
答案 1 :(得分:0)
将您的控制器更改为以下
.controller('ChatsCtrl', function($scope, Chats) {
$scope.newchat = {};
$scope.chats = Chats.all();
$scope.remove = function(chat) {
Chats.remove(chat);
}
$scope.sendChat = function(newchat){
Chats.set(newchat);
console.log($scope.newchat); //now you will have your $scope.newchat
newchat.lastText = "";
}
})