Javascript 如何使用 AngularJS 将对象推入数组
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How to push object into an array using AngularJS
提问by Roby Sottini
I am trying to do use the angular push function but it is not working.
我正在尝试使用角度推送功能，但它不起作用。
I want to add strings (or objects) into an array.
我想将字符串（或对象）添加到数组中。
I searched for basic examples here at Stack Overflow but I couldn't find it.
我在 Stack Overflow 上搜索了基本示例，但找不到。
Can anyone correct my code or write a very basic example?
任何人都可以更正我的代码或编写一个非常基本的示例吗？
Here is my example.
这是我的例子。
This is the HTML code:
这是 HTML 代码：
<form ng-controller="TestController as testCtrl ng-submit="testCtrl.addText(myText)">
<input type="text" value="Lets go">
<button type="button">Add</button>
</form>
This is the Java Script code:
这是 Java 脚本代码：
(function() {
var app = angular.module('test', []);
app.controller('TestController', function() {
this.arrayText = {
text1: 'Hello',
text2: 'world',
}
this.addText = function(text) {
arrayText.push(this.text);
}
});
})();
采纳答案by Anik Islam Abhi
Push only work for array .
Push 仅适用于 array 。
Make your arrayTextobject to Array Object.
使您的arrayText对象成为数组对象。
Try Like this
试试这样
JS
JS
this.arrayText = [{
text1: 'Hello',
text2: 'world',
}];
this.addText = function(text) {
this.arrayText.push(text);
}
this.form = {
text1: '',
text2: ''
};
HTML
HTML
<div ng-controller="TestController as testCtrl">
<form ng-submit="addText(form)">
<input type="text" ng-model="form.text1" value="Lets go">
<input type="text" ng-model="form.text2" value="Lets go again">
<input type="submit" value="add">
</form>
</div>
回答by User2
Please check this - http://plnkr.co/edit/5Sx4k8tbWaO1qsdMEWYI?p=preview
请检查这个 - http://plnkr.co/edit/5Sx4k8tbWaO1qsdMEWYI?p=preview
Controller-
控制器-
var app= angular.module('app', []);
app.controller('TestController', function($scope) {
this.arrayText = [{text:'Hello',},{text: 'world'}];
this.addText = function(text) {
if(text) {
var obj = {
text: text
};
this.arrayText.push(obj);
this.myText = '';
console.log(this.arrayText);
}
}
});
HTML
HTML
<form ng-controller="TestController as testCtrl" ng-submit="testCtrl.addText(testCtrl.myText)">
<input type="text" ng-model="testCtrl.myText" value="Lets go">
<button type="submit">Add</button>
<div ng-repeat="item in testCtrl.arrayText">
<span>{{item}}</span>
</div>
</form>
回答by jreyes
'Push' is for arrays.
“推”用于数组。
You can do something like this:
你可以这样做：
app.js:
应用程序.js：
(function() {
var app = angular.module('myApp', []);
app.controller('myController', ['$scope', function($scope) {
$scope.myText = "Let's go";
$scope.arrayText = [
'Hello',
'world'
];
$scope.addText = function() {
$scope.arrayText.push(this.myText);
}
}]);
})();
index.html
索引.html
<!doctype html>
<html ng-app="myApp">
<head>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.15/angular.min.js"></script>
<script src="app.js"></script>
</head>
<body>
<div>
<form ng-controller="myController" ng-submit="addText()">
<input type="text" ng-model="myText" value="Lets go">
<input type="submit" id="submit"/>
<pre>list={{arrayText}}</pre>
</form>
</div>
</body>
</html>
回答by Arun Kumar Saini
var app = angular.module('myApp', []);
app.controller('myCtrl', function ($scope) {
//Comments object having reply oject
$scope.comments = [{ comment: 'hi', reply: [{ comment: 'hi inside commnet' }, { comment: 'hi inside commnet' }] }];
//push reply
$scope.insertReply = function (index, reply) {
$scope.comments[index].reply.push({ comment: reply });
}
//push commnet
$scope.newComment = function (comment) {
$scope.comments.push({ comment:comment, reply: [] });
}
});<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="myApp" ng-controller="myCtrl">
<!--Comment section-->
<ul ng-repeat="comment in comments track by $index" style="background: skyblue; padding: 10px;">
<li>
<b>Comment {{$index}} : </b>
<br>
{{comment.comment}}
<!--Reply section-->
<ul ng-repeat="reply in comment.reply track by $index">
<li><i>Reply {{$index}} :</i><br>
{{reply.comment}}</li>
</ul>
<!--End reply section-->
<input type="text" ng-model="reply" placeholder=" Write your reply." /><a href="" ng-click="insertReply($index,reply)">Reply</a>
</li>
</ul>
<!--End comment section -->
<!--Post your comment-->
<b>New comment</b>
<input type="text" placeholder="Your comment" ng-model="comment" />
<a href="" ng-click="newComment(comment)">Post </a>
</div>回答by Joshua Kelly
A couple of answers that should work above but this is how i would write it.
上面应该有几个答案，但这就是我写的方式。
Also, i wouldn't declare controllers inside templates. It's better to declare them on your routes imo.
另外，我不会在模板中声明控制器。最好在您的路线上声明它们。
add-text.tpl.html
添加-text.tpl.html
<div ng-controller="myController">
<form ng-submit="addText(myText)">
<input type="text" placeholder="Let's Go" ng-model="myText">
<button type="submit">Add</button>
</form>
<ul>
<li ng-repeat="text in arrayText">{{ text }}</li>
</ul>
</div>
app.js
应用程序.js
(function() {
function myController($scope) {
$scope.arrayText = ['hello', 'world'];
$scope.addText = function(myText) {
$scope.arrayText.push(myText);
};
}
angular.module('app', [])
.controller('myController', myController);
})();
回答by laxmikant yadav
You should try this way. It will definitely work.
你应该试试这个方法。它肯定会起作用。
(function() {
var app = angular.module('myApp', []);
app.controller('myController', ['$scope', function($scope) {
$scope.myText = "Object Push inside ";
$scope.arrayText = [
];
$scope.addText = function() {
$scope.arrayText.push(this.myText);
}
}]);
})();
In your case $scope.arrayTextis an object. You should initialize as a array.
在你的情况下$scope.arrayText是一个对象。您应该初始化为数组。
