I am new to AngularJs. I have created a simple custom directive in Angular to print out some text. The code is below:
var demoApp = angular.module('demo-app', ['ngRoute']);
demoApp.directive('helloWorld', function() {
return {
restrict: 'E',
template: '<h1>Hello World!!</h1>'
};
});
In the html file I am using it like below:
<hello-world/>
<script type="text/javascript" src="js/demo-app.js"></script>
I am not seeing the output "Hello World!". Please let me know where I am going wrong? I am using Angular 1.3 version.
I did it following way in my project, and it is working fine.
customDirective.js
myApp.directive('viewTodoSuccessModal', function () {
return {
restrict: 'E',
templateUrl: '/scripts/app-angular/directives/templates/view-todo-success-modal.html'
};
});
app.js
angular.module('myApp', [
'myAppControllers'
, 'myAppDirectives'
]);
included/referenced in html page
<script src="#Url.Content("~/Scripts/app-angular/app.js")"></script>
<script src="#Url.Content("~/Scripts/app-angular/Directives/CustomDirectives.js")"></script>
Hope it helps
Just check whether your module name is 'demo-app' in html or not.If it is not then make it correct.module name in script file should be same as html file.
<html ng-app="demo-app">
<head>
<script src="angular.js"></script>
</head>
<body>
<hello-world />
<script type="text/javascript">
angular.module('demo-app',[]);
angular.module('demo-app')
.directive('helloWorld', function() {
return {
restrict: 'E',
template: '<h1>Hello World!!</h1>'
};
});
</script>
</body>
</html>
JS Fiddle: http://jsfiddle.net/vSpR4/1/
Related
I need to pass a variable from the server side to AngularJS.
I have the following HTML on the server side
<div ng-app="tablesApp" ng-controller="tablesCtrl" ng-init="lang='#lang';...go();" ...>
<st-date-range ?lang="#lang"? ...> </st-date-range>
...
</div>
I should put somewhere in the HTML code (actually in ng-init, but if there are other options I'm OK with that) my server side #lang value, then Angular should use that value...
I use a directive and I would like to pass the #lang(a server side ASP.NET razor variable) param to angular in order to use it in the template path:
app.directive('stDateRange', [function () {
return {
restrict: 'E',
require: '^stTable',
templateUrl: '/templates/stDateRange.en.html',
scope: false,
link: function (scope, element, attr, ctrl) {
var tableState = ctrl.tableState();
scope.$watchGroup(["minDate", "maxDate"],
function (newValues, oldValues) {
so, my server side #lang param I would like to pass to the directive in order to use it in the template URL, like this:
templateUrl: '/templates/stDateRange.#(lang).html'
P.S.:
I'll take this codepen example to show my need:
var app = angular.module('app', []);
app.directive('testDirective', function(){
var lang = 'en'; // <<< Set the variable HERE << !!!
return {
restrict: 'E',
template: '<p>my lang is "<strong>'+lang+'</strong>" </p>'
};
});
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<section ng-app="app" ng-init="lang='fr'">
<h3>Test directive for 'fr' lang</h3>
<test-directive></test-directive>
</section>
If I understand you right, you want to create dynamic templateUrl based on attr.lang.
So I would write your directive as:
app.directive('stDateRange', [function () {
return {
restrict: 'E',
require: '^stTable',
template: '<ng-include src="getTemplateUrl()"/>',
scope: false,
link: function (scope, element, attr, ctrl) {
scope.getTemplateUrl = function () {
var url = '/templates/stDateRange.' + attrs.lang + '.html'
return url;
};
var tableState = ctrl.tableState();
scope.$watchGroup(["minDate", "maxDate"],
function (newValues, oldValues) {
And HTML call:
<test-directive lang="{{lang}}"></test-directive>
Demo Plunker
[Edit 1]
If you don't want to use link, you can load constant:
app.directive('testDirective', function(Constants){
var lang = Constants.val;
return {
restrict: 'E',
template: '<p>my lang is "<strong>'+lang+'</strong>" </p>'
};
});
app.constant('Constants', {
val: 'Fess'
});
Demo Codepen
You cannot use $scope on your application directive ng-app but you can use $rootScope. I would achieve this by parsing $root.language into your directive and finally load the template dynamically. You could also access $rootScope.language inside your directive directly without parsing $root.language into it. You can do as you wish - demo punkr.
AngularJS application:
var app = angular.module('plunker', []);
app.controller('ApplicationController', function($scope) {});
app.directive('test', function ($http, $compile) {
return {
scope: {
lang: '='
},
restrict: 'E',
link: function(scope, element) {
$http.get('./template.'+ scope.lang +'.html').then(function (result) {
scope.test = 'some test';
element.html(result.data);
$compile(element.contents())(scope);
});
}
};
});
View:
<!doctype html>
<html ng-app="plunker" ng-init="language = 'en'">
<head>
<meta charset="utf-8">
<title>AngularJS Plunker</title>
<link rel="stylesheet" href="style.css">
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.5.6/angular.js"></script>
<script src="app.js"></script>
</head>
<body>
<div class="container">
<div class="row">
<test lang="$root.language"></test>
</div>
</div>
</body>
</html>
Template which includes your server side param:
<!doctype html>
<html ng-app="plunker" ng-init="language = '#lang'">
<head>
<meta charset="utf-8">
<title>AngularJS Plunker</title>
<link rel="stylesheet" href="style.css">
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.5.6/angular.js"></script>
<script src="app.js"></script>
</head>
<body>
<div class="container">
<div class="row">
<test lang="$root.language"></test>
</div>
</div>
</body>
</html>
I have a simple directive with transcluded html.
I want to be able to inject directive scope params to the transclude.
I wrote a simple example in plunker :
https://plnkr.co/edit/jqyiQdgQxbeTrzyidZYF?p=preview
I know in angular 4 it can be done, but I can't find a good way to do it in angularjs.
// Code goes here
var app = angular.module("app", []);
app.controller("mainCtrl", function($scope) {
$scope.users = ["tal", "oren", "orel", "shluki"];
$scope.deleteUser = (user) => {alert("trying to delete", user);}
});
app.directive('myList', function myList() {
return {
restrict: 'E',
transclude: true,
template: "<div><table><tr ng-repeat='item in collection'><td> This is inside myList - user name: {{item}} <ng-transclude></ng-transclude></td></tr></table></div>",
scope: {
collection: "="
},
replace: true
};
});
<!DOCTYPE html>
<html>
<head>
<script data-require="angularjs#1.6.2" data-semver="1.6.2" src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.2/angular.js"></script>
<link rel="stylesheet" href="style.css" />
<script src="script.js"></script>
</head>
<body ng-app="app" ng-controller="mainCtrl">
<h1>Hello Plunker!</h1>
<my-list collection="users">
<h2>This is transclude</h2>
<button ng-click="deleteUser(user)">Delete user: {{user ? user : "User name should be here"}}</button>
</my-list>
</body>
</html>
Will really appreicate some help.
plunker: https://plnkr.co/edit/jqyiQdgQxbeTrzyidZYF?p=preview
Here's a working plunker with your example.
http://plnkr.co/edit/BjSowyQdLXd0xoCZFqZ6?p=preview
The idea is to pass it as contents and not html as string. $compile is here because the link is done after ng-repeats already has transcluded its own template.
var template = '<h1>I am foo</h1>\
<div ng-repeat="item in users">\
<placeholder></placeholder>\
<hr>\
</div>';
var templateEl = angular.element(template);
transclude(scope, function(clonedContent) {
templateEl.find("placeholder").replaceWith(clonedContent);
$compile(templateEl)(scope, function(clonedTemplate) {
element.append(clonedTemplate);
});
});
If you want a proper explanation of what the problem was you should check the detailed answer here : Pass data to transcluded element
Hope this helped you out
Below is my code
I created a simple page and include a directive in it. And on ng-click in directive i want to call parent scope's method.
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Directive Page</title>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.0/angular.min.js"> </script>
</head>
<body>
<div ng-app="myapp" ng-controller="myController">
<ul-dir on-item-click="itemClick(obj)"></ul-dir>
</div>
</body>
</html>
<script>
var myapp = angular.module("myapp", []);
myapp.directive('ulDir', function() {
return {
restrict: 'E',
replace: 'true',
template: '<div id="container"><ul><li ng-repeat="content in contents">{{content.name}}</li></ul></div>',
controller: function ($scope) {
$scope.contents = [{'name':'Nishu', 'age':'20'},{'name':'Nidhi', 'age':'21'},{'name':'Kirti', 'age':'24'}];
},
scope: {
onItemClick: '&' // Pass a reference to the method
}
}
});
myapp.controller('myController', function($scope) {
$scope.itemClick = function(content){
console.log("Success : "+content);
};
});
</script>
So my console log print as "success : undefined"
So content object not passing from directive scope to parentscope.
Please help me.
I believe your call inside template should either be:
<a href="#" ng-click="onItemClick({'content':content})">
or
<a href="#" ng-click="onItemClick({'obj':content})">
Can you try. For more details see this SO post Can an angular directive pass arguments to functions in expressions specified in the directive's attributes?
I'm trying to include a css file using this code :
HTML code:
<html ng-app="a">
<head>
<cssA></cssA>
</head>
<body><script src="app.js"></script></body>
</html>
AngularJS
(function () {
'use strict';
var app = angular.module('a', []),
app
.directive("cssA", function () {
return {
restrict: 'E',
templateUrl: "multiple-css.html"
};
});
}());
multiple-css.html
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css">
<link rel="stylesheet" href="https:/maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap-theme.min.css">
How do I please include that html file ?
Directive names are normalized.
In HTML they should be spinal-case:
<html ng-app="a">
<head>
<css-a></css-a>
</head>
<body><script src="app.js"></script></body>
</html>
In JS, they are camel-case:
app.directive("cssA", function () {
return {
restrict: 'E',
templateUrl: "multiple-css.html"
};
});
I was using angular growl, which is quite good for showing message.
(https://github.com/marcorinck/angular-growl)
It OK to add a message in a controller, but when add a message in a directive, it's not show, why?
Here is my test code.
a.html
<?xml version="1.0" encoding="UTF-8" ?>
<!doctype html>
<html>
<head>
<link rel="stylesheet" type="text/css" href="https://raw.github.com/marcorinck/angular-growl/master/src/growl.css" />
<script type="text/javascript" src="../lib/angular/angular.js"></script>
<script type="text/javascript" src="../lib/angular-growl/angular-growl.js"> </script>
<script type="text/javascript" src="../lib/angular-route/angular-route.js"> </script>
<script type="text/javascript" src="a.js"></script>
</head>
<body>
<div ng-view=""></div>
<div growl="" class='growl-container'></div>
</body>
</html>
a.js
'use strict';
var module = angular.module('a', ['ngRoute', 'angular-growl']);
module.config(['$routeProvider', function ($routeProvider) {
$routeProvider.when('/', {
controller: 'IndexCtrl',
template: '<button aaa>aaaa</button>'
});
}]);
module.controller('IndexCtrl', ['growl', function (growl) {
growl.addErrorMessage('haha');
}]);
module.directive('aaa', ['growl', function (growl) {
return {
restrict: 'A',
scope: {},
link: function (scope, element, attrs) {
element.bind('click', function (e) {
console.log('aaa');
growl.addErrorMessage('aaa');
growl.addErrorMessage('bbb');
});
}
};
}]);
var $html = angular.element(document);
$html.ready(function () {
angular.bootstrap($html, ['a']);
$html.addClass('ng-app');
});
Whenever you have events outside of angular that change angular scopes you need to use $apply to inform angular that changes are made and to run a digest cycle.
If you were to use ng-click instead you wouldn't run into this problem.
To resolve with current external event code:
element.bind('click', function (e) {
scope.$apply(function(){
growl.addErrorMessage('aaa');
})
});