Is it possible to write a function like this?
$scope.myFunc = function () {
this.details = 1;
this.setDetails = function (d) {
this.details = d;
}
}
How can I call this function from view?
set Details
It is not even calling my function.
I prepare working example for you. First use constructor function and then create new instance $scope.myfunc by calling new MyFunc().
var myApp = angular.module('myApp', []);
myApp.controller('myController', function($scope) {
//Constructor function
function MyFunc () {
this.details = 1;
this.setDetails = function(details) {
this.details = details;
}
}
//New instance of MyFunc
$scope.myfunc = new MyFunc();
});
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="myApp">
<div ng-controller="myController">
<input type="text" ng-model="myfunc.details">
<button ng-click="myfunc.setDetails('hi')">Click me</button>
</div>
</div>
Related
Hello I am beginner in mean Stack. and I have data in localstorage and I want to fetch the data from the local storage and show in html file but I don't know How to get it. on the view file.
$scope.useredit = function (d) {
var user_id = d._id;
var dataToModify;
angular.forEach($scope.dp, function (value, key) {
if (user_id == value._id) {
dataToModify = value;
$localStorage.userData = dataToModify;
console.log($localStorage.userData.name);
$location.path('/useredit');
}
});
}
when I type localStorage; into console it show
ngStorage-userData
:
"{
"_id":"5846692617e0575c0e0c2211",
"password":123456,
"email":"montyy1981#gmail.com",
"name":"digvijay12","__v":0
}"
How to get it value into the view file.I used like
<div>{{userData.email}}</div>
But it is not showing data.please help me how to fetch localstorage data and show into view file.
You can use core concept without ngStorage....
https://developer.mozilla.org/en-US/docs/Web/API/Storage/LocalStorage
localStorage.setItem("userData", $scope.Data);
$scope.storageData = localStorage.getItem("userData");
<p>{{storageData.email}}</p>
How to get the localStoragedata anywhere this is very simple we have to pass localStorage data into the controller global variable suppose
we have the data into localstorage
$scope.useredit = function (d) {
var user_id = d._id;
var dataToModify;
angular.forEach($scope.dp, function (value, key) {
if (user_id == value._id) {
dataToModify = value;
$localStorage.userData = dataToModify;
console.log($localStorage.userData.name);
$location.path('/useredit');
}
});
}
we have to define pass $localStorage.userData into the other variable after controller start.
app.controller("usercontroller",function($scope,$http, $localStorage,$location){
$scope.registeruser = $localStorage.userData;
$scope.useredit = function (d) {
var user_id = d._id;
var dataToModify;
angular.forEach($scope.dp, function (value, key) {
if (user_id == value._id) {
dataToModify = value;
$localStorage.userData = dataToModify;
console.log($localStorage.userData.name);
$location.path('/useredit');
}
});
}
});
For better understanding click this DEMO
In the controller you need to inject "ngStorage" angular.module('MyApp', ["ngStorage"]).
And add the dependency script link <script src="https://cdn.jsdelivr.net/ngstorage/0.3.6/ngStorage.min.js"></script>
HTML
<html ng-app="MyApp">
<head>
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.1/angular.min.js"></script>
<script src="https://cdn.jsdelivr.net/ngstorage/0.3.6/ngStorage.min.js"></script>
<script src="script.js"></script>
</head>
<body>
<div ng-controller="MyController">
<input type="button" value = "Save" ng-click = "Save()" />
<input type="button" value = "Get" ng-click = "Get()" />
</div>
</body>
</html>
Script.js
var app = angular.module('MyApp', ["ngStorage"])
app.controller('MyController', function ($scope, $localStorage, $sessionStorage, $window) {
$scope.Save = function () {
$localStorage.email = "xyz#gmail.com";
}
$scope.Get = function () {
$window.alert($localStorage.email);
}
});
Hope it will be usefull for you.
I am new to AngularJS JavaScript. Just started learning it. I was trying with some small sample programs. Here is what I tried but its throwing error.
<body ng-app="myApp">
<div ng-controller="myCtrl">
{{time}}
<br>
</div>
</body>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<script type="text/javascript">
var app = angular.module("myApp", []);
app.service('hexafy', ['',
function() {
this.myfunc = function(num) {
return num.toString(16);
}
}
]);
app.controller('myCtrl', ['hexafy', '$scope', '$interval',
function(hexafy, $scope, $interval) {
$scope.time = new Date().toLocaleTimeString();
$interval(function() {
$scope.time = new Date().toLocaleTimeString();
}, 1000);
// $scope.hex = hexafy.myfunc(255);
}
]);
</script>
The array syntax is used when the code is minified and keep the mapping of arguments. For more on this please see my other answer Why we Inject our dependencies two times in angularjs?.
In the code, as there is no parameter passed to the hexafy service, there is no need of using the array syntax and pass empty string.
app.service('hexafy', ['',
function() {
Use normal syntax.
app.service('hexafy', function() { // <-- Remove `[` and empty string from here
...
...
}); // <-- Remove `]` from here
var app = angular.module("myApp", []);
app.service('hexafy', function() {
this.myfunc = function(num) {
return num.toString(16);
}
});
app.controller('myCtrl', ['hexafy', '$scope', '$interval',
function(hexafy, $scope, $interval) {
$scope.time = new Date().toLocaleTimeString();
$interval(function() {
$scope.time = new Date().toLocaleTimeString();
}, 1000);
}
]);
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.22/angular.min.js"></script>
<body ng-app="myApp">
<div ng-controller="myCtrl">
{{ time }}
<br />
</div>
</body>
What Tushar has suggested is perfect, Just adding working piece of Plunker
app.service('hexafy',function() {
this.myfunc = function(num) {
return num.toString(16);
}
}
);
It looks like this questions already asked few times but there is no correct answer to it.
my case: i'm loading a template (with html and script) init to div using ajax (not using angular routing temple for some reason).
index.html (main)
<!DOCTYPE html>
<html ng-app="app" ng-controller="AppCtrl">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Web</title>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.9/angular.min.js"></script>
</head>
<body>
<div class="container body-content">
<div class="dynamic-content" >
<!-- Loading content Here -->
</div>
<button ng-click="loadTemplate()">Load Template</button>
</div>
<script>
angular.module('app', [])
.controller('AppCtrl', function ($scope) {
$scope.someData = {};
$scope.loadTemplate = function() {
....
//AJAX to get the templet.html
//and load it into .dynamic-content
//then applying scope();
}
});
</script>
</body>
</html>
template.html (template)
<div ng-controller="TempCtrl">
<h2>About</h2>
<h3>{{total}}</h3>
<p>Testing the total</p>
<button ng-click="update()">Update</button>
</div>
<script>
console.log('begin')
angular.module('app')
.controller('TempCtrl', function ($scope) {
$scope.total = 0;
console.log('inside')
$scope.update = function () {
$scope.total += 1;
};
});
console.log('end')
</script>
when i click the button Load Template it loads the template.html file in to container but i'm getting error
Error: [ng:areq] Argument 'TempCtrl' is not a function, got undefined
though its being added to app controllers.
How can i add controllers dynamically and get it work with dynamic html nodes
DEMO HERE https://plnkr.co/edit/EAa9Md36hDzpQ1BgIQKg?p=preview
This blog describes how to fiddle with angular to force it to load additional controllers after it has been bootstrapped:
http://www.bennadel.com/blog/2553-loading-angularjs-components-after-your-application-has-been-bootstrapped.htm
Of course, this is completely unsupported, and could be broken by changes to angular at any time.
But, here is an updated version of your code using this method:
var app = angular.module('app', [])
app.config(
function($controllerProvider, $provide, $compileProvider) {
// Since the "shorthand" methods for component
// definitions are no longer valid, we can just
// override them to use the providers for post-
// bootstrap loading.
console.log("Config method executed.");
// Let's keep the older references.
app._controller = app.controller;
app._service = app.service;
app._factory = app.factory;
app._value = app.value;
app._directive = app.directive;
app.controller = function(name, constructor) {
console.log("controller...");
console.log(name);
console.dir(constructor);
$controllerProvider.register(name, constructor);
return (this);
};
// Provider-based service.
app.service = function(name, constructor) {
$provide.service(name, constructor);
return (this);
};
// Provider-based factory.
app.factory = function(name, factory) {
$provide.factory(name, factory);
return (this);
};
// Provider-based value.
app.value = function(name, value) {
$provide.value(name, value);
return (this);
};
// Provider-based directive.
app.directive = function(name, factory) {
$compileProvider.directive(name, factory);
return (this);
};
});
app.controller('AppCtrl', function($scope, $http, $compile) {
$scope.someData = {};
$scope.loadTemplate = function() {
$http.get("template.html")
.then(function(r) {
// load in the html, including the script, which will be executed
$(".dynamic-content").html(
r.data
);
// compile the loaded html into an actual template and put it back where it was
$(".dynamic-content").html($compile($(".dynamic-content").html())($scope));
})
}
});
Note that I used jQuery to place the HTML into the DOM, causing the script to execute, then to grab the HTML back out of the DOM so it could be compiled, after which I placed it back in the DOM again.
Also, there is an undefined variable in your template.html, so I updated it to look like this:
<script>
console.log('begin')
angular.module('app')
.controller('TempCtrl', function ($scope) {
$scope.total = 0;
console.log('inside')
$scope.update = function () {
$scope.total += 1;
};
});
console.log('end')
</script>
<div ng-controller="TempCtrl">
<h2>About</h2>
<h3>{{total}}</h3>
<p>Testing the total</p>
<button ng-click="update()">Update</button>
</div>
Here is a working plunk: http://plnkr.co/edit/cB5N05
Updated Dave's example with angular components support
app.config(
function ($controllerProvider, $provide, $compileProvider) {
var app = angular.module('app');
// Let's keep the older references.
app._controller = app.controller;
app._service = app.service;
app._factory = app.factory;
app._value = app.value;
app._directive = app.directive;
app._component = app.component;
// Provider-based controller.
app.controller = function (name, constructor) {
$controllerProvider.register(name, constructor);
return ( this );
};
// Provider-based service.
app.service = function (name, constructor) {
$provide.service(name, constructor);
return ( this );
};
// Provider-based factory.
app.factory = function (name, factory) {
$provide.factory(name, factory);
return ( this );
};
// Provider-based value.
app.value = function (name, value) {
$provide.value(name, value);
return ( this );
};
// Provider-based directive.
app.directive = function (name, factory) {
$compileProvider.directive(name, factory);
return ( this );
};
// Provider-based component.
app.component = function (name, options) {
$compileProvider.component(name, options);
return ( this );
};
});
Try loading the templates controller in the index.html, instead of in the template.html, that way it is already existing when the markup is looking for it.
In index.html script portion:
angular.modules('app', [])
.controller('AppCtrl', function ($scope) {
$scope.someData = {};
$scope.loadTemplate = function() {
....
//AJAX to get the templet.html
//and load it into .dynamic-content
//then applying scope();
}
}).controller('TempCtrl', function ($scope) {
$scope.total = 0;
console.log('inside')
$scope.update = function () {
total += total;
};
});
EDIT:
This is when having multiple JS files that reference the app module would be handy, that way each file is owning a controller.
I want to broadcast angular event from javascript function i.e angular.injector(['ng', 'myModule']).get("mySharedService").prepForBroadcast('hello');
By using above line I can invoke prepForBroadcast() but I can't catch event in $scope.$on()
Note: I want to call prepForBroadcast() method from javascript function.
<!-- index.html -->
<!DOCTYPE html>
<html>
<head>
<!-- SPELLS -->
<!-- load angular via CDN -->
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.0.8/angular.min.js"></script>
<script src="script.js"></script>
<style>
.question{
border:1px solid darkgray;
padding:10px;
margin-bottom:10px;
}
</style>
</head>
<body>
<div ng-app="myModule">
<div id="appID" ng-controller="ControllerZero">
<input ng-model="message" >
</div>
<div ng-controller="ControllerOne">
<input ng-model="message" >
</div>
<div ng-controller="ControllerTwo">
<input ng-model="message" >
</div>
<my-component ng-model="message"></my-component>
</div>
</body>
<script>
angular.injector(['ng','myModule']).get("mySharedService").prepForBroadcast('hello');
</script>
</html>
script.js file
var myModule = angular.module('myModule', []);
myModule.factory('mySharedService', function($rootScope) {
var sharedService = {};
sharedService.message = '';
sharedService.prepForBroadcast = function(msg) {
console.log('prepForBroadcast');
this.message = msg;
this.broadcastItem();
};
sharedService.broadcastItem = function() {
console.log('broadcastItem');
$rootScope.$broadcast('handleBroadcast');
};
return sharedService;
});
myModule.directive('myComponent', function(mySharedService) {
return {
restrict: 'E',
controller: function($scope, $attrs, mySharedService) {
$scope.$on('handleBroadcast', function() {
$scope.message = 'Directive: ' + mySharedService.message;
});
},
replace: true,
template: '<input>'
};
});
function ControllerZero($scope, sharedService) {
$scope.$on('handleBroadcast', function() {
console.log('handle event');
$scope.message = sharedService.message;
});
}
function ControllerOne($scope, sharedService) {
$scope.$on('handleBroadcast', function() {
$scope.message = 'ONE: ' + sharedService.message;
});
}
function ControllerTwo($scope, sharedService) {
$scope.$on('handleBroadcast', function() {
$scope.message = 'TWO: ' + sharedService.message;
});
}
ControllerZero.$inject = ['$scope', 'mySharedService'];
ControllerOne.$inject = ['$scope', 'mySharedService'];
ControllerTwo.$inject = ['$scope', 'mySharedService'];
angular.injector() creates a new injector, and with it a new $rootScope. The event will be broadcasted on this new $rootScope instead of on the one your controllers are listening on.
You need to retrieve the injector already associated with your application:
angular.element(domElement).injector();
You also need to manually trigger the digest loop for the data bindings to update, for example by using $apply.
Example:
angular.element(document).ready(function() {
var element = angular.element(document.querySelector('.ng-scope'));
var injector = element.injector();
var scope = element.scope();
scope.$apply(function() {
injector.get('mySharedService').prepForBroadcast('hello');
});
});
Demo: http://plnkr.co/edit/NDKBdzSmvN1xY7alafir?p=preview
Another way of publishing events from one controller and listening them in other controllers would be to use angular-PubSub module.
The PubSub makes only subscribers to listen to the published events unlike the $rootScope.$broadcast in which it sends event to all the Scopes in Scope hierarchy making it inefficient as compared to the PubSub approach.
<head>
<title></title>
<script src="javascript/vendor/jquery-1.6.4.min.js" type="text/javascript"></script>
<script src="javascript/vendor/underscore.js" type="text/javascript"></script>
<script src="javascript/vendor/backbone.js" type="text/javascript"></script>
</head>
<body>
<script type="text/javascript" >
var MyApp = (function(_, Backbone){
var myApp = {};
var initializers = [];
myApp.addInitializer = function(callback){
var initializer = {
obj: this,
callback: callback
}
initializers.push(initializer);
};
myApp.initialize= function(){
_.each(initializers, function(initializer){
initializer.callback.call(initializer.obj);
});
};
// the event aggregator
myApp.vent = _.extend({}, Backbone.Events);
// the other app initialization code ...
return myApp;
})(_, Backbone);
var MyModule = (function(MyApp, Backbone){
var MyView = Backbone.View.extend({
initialize: function(){
MyApp.bind("some:event", this.someCallback, this);
},
someCallback: function(){
alert("I'm Doing Stuff!!!");
}
});
// ... other code, including MyApp.addInitializer
})(MyApp, Backbone);
var AnotherModule = (function (MyApp, Backbone) {
var anotherModule = {};
anotherModule.SomeFunction = function () {
MyApp.trigger("some:event");
//alert("Hello");
};
return anotherModule;
})(MyApp, Backbone);
// kick it all off and show the alert box
//$(function(){
// MyApp.initialize();
// AnotherModule.SomeFunction();
//});
$(function () {
MyApp.initialize();
AnotherModule.SomeFunction();
});
</script>
</body>
I am getting error on this line MyApp.trigger("some:event"); . I copied the code from following link
URL: http://lostechies.com/derickbailey/2011/11/17/introduction-to-composite-javascript-apps/
Can you help me using modules two or more and each of them have multiple views. I need to communicate them using backbone as the above URL did.
Thanks.
I tried to solve this in different ways but kept ending up with the following solution. The solution involves writing my code in modules and using marionette modules and vent to communicate with them. Marionette helped me a lot and I hope the different features further in my development.
index.html
<script type="text/javascript">
$(function () {
//var myModule = MyApp.module("MyModule");
// console.log(MyApp.MyModule.someData); //=> public data
MyApp.OrganizerModule.someFunction(); //=> public data
//var LayOutModel = new MyApp.ShellModule.LayOut();
var LayoutView = new MyApp.ShellModule.LayoutView();
LayoutView.render();
var Explorer = new MyApp.OrganizerModule.ExplorerView();
});
</script>
The following templates are used:
<script id="layout_temp" type="text/template">
<div id="layout">
<div id="header">
header
</div>
<div id="container">
<div id="center" class="column">
center
</div>
<div id="left" class="column">
left
</div>
<div id="right" class="column">
right
</div>
</div>
<div id="footer">
footer
</div>
</div>
</script>
<script id="Explorer" type="text/template">
<div > start :
<button>Say hello</button>
</div>
</script>
Here is the Module definition and the subscription of the event using Marionette
MyApp.module("ShellModule", function (ShellModule, MyApp, Backbone, Marionette, $, _) {
ShellModule.LayoutView = Backbone.View.extend({
initialize: function () {
//Backbone.ModelBinding.call(this);
alert("Hello2");
MyApp.vent.on("toolClick_Event", function (cat) {
alert("test toolClick_Event fired");
});
}
// , events: {
// 'toolClick_Event': 'toolClick_Event'
// }
, render: function () {
var template = _.template($("#layout_temp").html(), {});
$("#Maincontainer").html(template);
//$(this.el).append("<ul> <li>hello world</li> </ul>");
}
});
});
And the other Module that triggers the event using MyApp.vent.trigger.
MyApp.module("OrganizerModule", function (OrganizerModule, MyApp, Backbone, Marionette, $, _) {
// Private Data And Functions
// --------------------------
var myData = "this is private data";
var myFunction = function () {
console.log(myData);
}
// Public Data And Functions
// -------------------------
OrganizerModule.someData = "public data";
OrganizerModule.someFunction = function () {
//console.log(MyModule.someData);
alert(OrganizerModule.someData);
}
OrganizerModule.ExplorerView = Backbone.View.extend({
el: "#center",
events: {
'click button': 'toolClick'
}
, initialize: function () {
this.render();
this.setElement(this.el);
}
, render: function () {
var template = _.template($("#Explorer").html(), {});
//this.$el.html.add(template);
// $("#center").append(template);
//return this.el;
$(this.el).html(template);
return this;
}
, toolClick: function () {
alert("test toolClick");
// var template = _.template($("#Explorer").html(), {});
//$("#center").append(template);
MyApp.vent.trigger('toolClick_Event');
$("#Maincontainer").append("<div> other data </div>");
}
});
});
Hope this will be helpful to others.