I have created a simple app with simple animations where I can add and remove items to an array (used ng-fx for animations), but I have a problem.
When I try to add new elements, I get ng-repeat duplicate error. I fixed it by adding track by $index, but this time a new error occurs. If I try to remove an element from the list, wrong one is being animated.
Here's my plnkr
http://plnkr.co/edit/hKk9VGHIE1GT2i3P8TtT?p=preview
Here's my code.
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="style.css" />
<script data-require="angular.js#1.5.0" data-semver="1.5.0" src="https://ajax.googleapis.com/ajax/libs/angularjs/1.5.0/angular.js"></script>
<script src="angular-animate.min.js"></script>
<script src="ng-fx.js"></script>
</head>
<body ng-app="app">
<div ng-controller="FirstController">
<div ng-repeat="name in names track by $index" class="fx-fade-normal">
{{name}}
<input type="submit" value="Remove" ng-click="remove($index)">
</div>
<input type="text" ng-model="name" />
<input type="submit" value="Add" ng-click="add()">
</div>
<script>
angular.module('app', ['ngAnimate', 'ng-fx']);
angular.module('app').controller('FirstController', ["$scope", function($scope) {
$scope.names = ["first", "second", "third", "fourth"];
$scope.add = function() {
$scope.names.push($scope.name);
};
$scope.remove = function($index) {
$scope.names.splice($index, 1);
};
}]);
</script>
</body>
</html>
It's simple change ng-repeat="name in names track by $index" to ng-repeat="name in names track by $id(name)"
Related
I am working on uib-popover recently, I found a problem that I am confused with.
I want to popover a template, in this template I have an input, at first the input have initial value.
I want to update the content real-time based on the input. When I just bind a variable, it does not work, while if I bind an object, it works. I can't figure this problem out.
index.html
<!doctype html>
<html ng-app="ui.bootstrap.demo">
<head>
<script src="//ajax.googleapis.com/ajax/libs/angularjs/1.5.8/angular.js"></script>
<script src="//ajax.googleapis.com/ajax/libs/angularjs/1.5.8/angular-animate.js"></script>
<script src="//ajax.googleapis.com/ajax/libs/angularjs/1.5.8/angular-sanitize.js"></script>
<script src="//angular-ui.github.io/bootstrap/ui-bootstrap-tpls-2.4.0.js"></script>
<script src="example.js"></script>
<link href="//netdna.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
<div ng-controller="PopoverDemoCtrl">
<hr/>
<hr/>
<hr/>
<button uib-popover-template="'myPopoverTemplate.html'" popover-placement="bottom-left" type="button" class="btn btn-default">Popover With Template</button>
{{dynamicPopover.title}}
<script type="text/ng-template" id="myPopoverTemplate.html">
<div class="form-group">
<input type="text" ng-model="dynamicPopover.title" class="form-control">
</div>
</script>
<button uib-popover-template="'inputContent.html'" popover-placement="bottom-left" type="button" class="btn btn-default">Popover With Template</button>
{{inputContent}}
<script type="text/ng-template" id="inputContent.html">
<div class="form-group">
<input type="text" ng-model="inputContent" class="form-control">
</div>
</script>
</div>
</body>
</html>
example.js
angular.module('ui.bootstrap.demo', ['ngAnimate', 'ngSanitize', 'ui.bootstrap']);
angular.module('ui.bootstrap.demo').controller('PopoverDemoCtrl', function($scope, $sce) {
$scope.dynamicPopover = {
title: 'Title'
};
$scope.inputContent = "hello";
});
Here is the plunker example https://plnkr.co/edit/IPXb5tddEPQPPAUrjdYx?p=preview, you could have a try.
You made an interesting point in your second plunk. I didn't catch this the first time but I think it may be because you are doing your popover input in a script tag. I would suggest using a custom directive if you could versus just doing it in an inline script. That way it is kept up to date with angular's digest cycle.
Example Directive:
customPopoverApp.directive('customPopover',['$compile','$templateCache',function($compile,$templateCache){
return {
restrict:'A',
transclude:true,
template:"<span>Click on me to show the popover</span>",
link:function(scope,element,attr){
var contentHtml = $templateCache.get("customPopover.html");
contentHtml=$compile(contentHtml)(scope);
$(element).popover({
trigger:'click',
html:true,
content:contentHtml,
placement:attr.popoverPlace
});
}
};
}]);
And to use it:
<button custom-popover="" popover-place="bottom">click on me to show the popover</button>
{{message}}
<script type="text/ng-template" id="customPopover.html">
<div class="form-group">
<input type="text" ng-model="message" class="form-control">
</div>
</script>
Here is a working plunk. I hope this is what you're looking for
Here is a snippet:
<!document html>
<html ng-app>
<head>
<title>First</title>
<script src="D:\Coding\angular.min.js" type="text/javascript"></script>
</head>
<body>
<div ng-controller="FirstController">
<input id="Text1" type="text" ng-model="user.name" />
<div>{{user.name}}</div>
</div>
<script>
function FirstController($scope){
$scope.user = {name: ""};
};
</script>
</body>
</html>
Open the .html file with Chrome, the '{{user.name}}' shows on the screen. I think the {{}} position should be the same with the textbox content, what's wrong?
You need to use like this :
<ng-app="Your Module Name ">
In controller write
var app=angular.module("your module name (can be anything)",[]).controller("myCtrl", function("your dependencies "){});
Hope it will work
In the ng-app attribute you need to add app name like as ng-app="myApp"
<div ng-app="myApp" ng-controller="myCtrl">
First Name: <input type="text" ng-model="firstName"><br>
Last Name: <input type="text" ng-model="lastName"><br>
<br>
Full Name: {{firstName + " " + lastName}}
</div>
<script>
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
$scope.firstName = "John";
$scope.lastName = "Doe";
});
</script>
If you are using angular version below 1.3 it should work
DEMO
<!DOCTYPE html>
<html ng-app>
<head>
<script src="https://code.angularjs.org/1.2.3/angular.js"></script>
</head>
<body>
<div ng-controller="FirstController">
<input id="Text1" type="text" ng-model="user.name" />
<div>{{user.name}}</div>
</div>
<script>
function FirstController($scope){
$scope.user = {name: "test"};
};
</script>
</body>
</html>
You need to add like this
ng-app="yourappname"
Refer ng-app directive in documentation
Please look at the following code:
<html lang="en" >
<head>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js"></script>
<script src="app.js"></script>
</head>
<body ng-app="flexbox" >
<div id="wrapper" ng-controller="flex-ctrl as ctrl">
<div id="aside">
<p ng-repeat="item in ctrl.buttons"> {{item}} </p>
</div>
</div>
</body>
</html>
var app = angular.module("flexbox", []);
app.controller("flex-ctrl", ['$scope', function($scope) {
$scope.buttons = ['a','b', 'c'];
}]);
I expect to see three <p> items. However, it looks like ng-repeat is ignored and I see an empty page.
Do you know what is the problem?
For your convenience: http://codepen.io/CrazySynthax/pen/yVwWdo
Use this.buttons instead of $scope.buttons since you are using controller as syntax
var app = angular.module("flexbox", []);
app.controller("flex-ctrl", ['$scope', function($scope) {
this.buttons = ['a','b', 'c'];
}]);
<!DOCTYPE html>
<html>
<head>
<script data-require="angular.js#1.4.7" data-semver="1.4.7" src="https://code.angularjs.org/1.4.7/angular.js"></script>
</head>
<body ng-app='flexbox'>
<div id="wrapper" ng-controller="flex-ctrl as ctrl">
<div id="aside">
<p ng-repeat="item in ctrl.buttons"> {{item}} </p>
</div>
</div>
</body>
</html>
Since you are using controller as syntax you can change your ctrl like so:
var app = angular.module("flexbox", []);
app.controller("flex-ctrl", [function() {
var vm = this;
vm.buttons = ['a','b', 'c'];
}]);
hope it helps.
Your variable is in $scope, so you can just loop over it with:
<p ng-repeat="item in buttons"> {{item}} </p>
Instead of
<p ng-repeat="item in ctrl.buttons"> {{item}} </p>
Forked your Codepen here.
How can I create dynamic ng-models in Angular? I tried but I think I'm having a hard time getting it to run. All I get is undefined. Here's my code.
<input type="text" class="form-control input-sm" ng model="teller[value.teller_id]" value="<% value.mac_address %>">
I am planning to have a ng-model that has the same name but only changes by number. I have an object that holds the number from 1-4. which is value.teller_id. I want to append it to the ng-model as teller1,teller2,teller3 (teller[value.teller_id] etc.. It is looped by ng-repeat which I don't have any problem but rather creating the dynamic ng-model and changing the number will yield undefine.
ng model="teller[value.teller_id]" <---- doesn't work
I want to achive teller1, teller2 etc..
Thanks!
Yes. We can generate ng-model name dynamically.
var app = angular.module('myApp', []);
app.controller('MainCtrl', function($scope) {
$scope.teller = {};
$scope.name = [{
"id":1
},{
"id":2
}]
});
<!DOCTYPE html>
<html ng-app="myApp">
<head>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.28/angular.min.js"></script>
<link rel="stylesheet" href="style.css">
<script src="script.js"></script>
</head>
<body ng-controller="MainCtrl">
<div ng-repeat="x in name">
<input type="text" ng-model="teller[x.id]" />
</div>
<pre>{{teller | json}}</pre>
</body>
</html>
Hope it works for your case :)
I have to finish this assignment. I am trying to print out the contacts in contactsController and be able to add to this list. I can't figure out where I am going wrong. Can anyone help. I have an array contacts[] in contactController and I am trying to print out the list in html using ng-repeat="contact in contactsController.contacts" and binding to contact.name and contact.type.
<!doctype html>
<html ng-app>
<head>
<style>
</style>
<link rel="stylesheet" type="text/css" href="style.css">
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.16/angular.min.js"></script>
</head>
<body>
<div ng-controller="contactsController">
<label>Name</label>
<input ng-model="contactsController.contacts.name" type="text" placeholder="Name">
<label>email</label>
<input ng-model="contactsController.email" type="text" placeholder="Email">
<button ng-click="addContact()">Add contact</button>
</div>
<div>{{contactsController.name}}</div>
<div>
<ul>
<li ng-repeat="contact in contactsController.contacts">
<div>{{contact.name}}</div>
<div>{{contact.email}}</div>
<div><button ng-click="deleteContact($index)">delete</button></div>
</li>
</ul>
</div>
<script>
// Your code goes here.
// $( document ).ready(function() {
// alert('jQuery asdfas!');
// Your code here.
// });
function contactsController($scope){
$scope.contacts=[{name:'asdf',email:'asdf'},
{name:'yweuir',email:'xcvzx'}
];
contactsController.prototype.addContact =function($scope){
console.log(this.name);
console.log(this.email);
this.contacts.push({name:this.name,email:this.email});
}
}
</script>
</body>
</html>
Your repeat is wrong. It should be:
ng-repeat="contact in contacts"
When you are doing a repeat, the reference to the array assumes it's in $scope already. Your controller has nothing to do with it. So if you had:
$scope.contractsController = {
contacts: {...}
}
Your code would work. But your controller is fine, just remove the reference from the repeat.
I'll create a plunker so you can check the detail changes in the revisions.
http://plnkr.co/edit/NrbLiIFw4EbxEfYJm41J?p=preview
The HTML had a wrong indentation, and the ng-repeat was outside of the ng-controller block.
Also, was missing the injection of the controller into the module of the application, i rewrote the application using the general application declaration with ngApp directive.
If you want an example more detailed you can check the TodoMVC angular application
https://github.com/tastejs/todomvc/tree/gh-pages/architecture-examples/angularjs-perf
Other examples:
http://todomvc.com/architecture-examples/angularjs/#/
All the best
Hey I'll create a plnkr link.
Here is link Check this:
http://plnkr.co/edit/mzcAC5yU9P6Mb3nfGByP?p=preview
Here is Code:
<!DOCTYPE html>
<html ng-app = "app">
<head>
<link rel="stylesheet" type="text/css" href="style.css">
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.16/angular.min.js">
</script>
<script>
angular.module("app",[]).controller('contactsController',['$scope',
function($scope) {
$scope.contacts=[{name:'Abhi',email:'Abhi#test.com'},
{name:'Sharma',email:'sharma#test.com'}
];
$scope.addContact =function(){
this.contacts.push({name:this.name,email:this.email});
$scope.name = '';
$scope.email = '';
}
$scope.deleteContact = function (index) {
$scope.contacts.splice(index, 1);
}
}
]);
</script>
</head>
<body ng-controller="contactsController">
<label>Name</label>
<input ng-model="name" type="text" placeholder="Name">
<label>email</label>
<input ng-model="email" type="text" placeholder="Email">
<button ng-click="addContact()">Add contact</button>
<div>
<ul>
<li ng-repeat="contact in contacts">
<div>{{contact.name}}</div>
<div>{{contact.email}}</div>
<div><button ng-click="deleteContact($index)">delete</button></div>
</li>
</ul>
</div>
</body>
</html>
May be it help you..
Thanks
You don't prefix your values with the controller name. The ng-controller section basically sets the scope for the child elements to an instance of the controller. So what's happening in your code currently is that it's checking the contactsController for an attribute of contactsController.